Mastering the OSI Model for Cloud and Network Security Experts
You're not just managing networks anymore. You're defending entire digital ecosystems. Every second, unseen threats probe your infrastructure, exploiting gaps in protocol understanding, misconfigured layers, and blind spots in the communication stack. The difference between stopping an attack and being compromised? Mastery of the OSI Model - not as an academic concept, but as a tactical, real-time defensive framework. Most security professionals were taught the OSI Model once, in passing, and never applied it end-to-end in their cloud environments. That’s why so many breaches begin at Layer 3 or pivot through Layer 7. Attackers know these layers better than most defenders. This isn’t just a knowledge gap - it’s a career risk. Your team, your reputation, and your ability to lead resilient architectures depend on closing it. Mastering the OSI Model for Cloud and Network Security Experts transforms theoretical knowledge into immediate, actionable mastery. This course bridges the gap from fragmented understanding to full-stack command. You’ll go from uncertain about packet flow across layers to confidently diagnosing anomalies, hardening cloud deployments, and architecting defence-in-depth strategies - all mapped precisely to the seven layers of the OSI Model. One senior security architect used this course to redesign her organisation’s hybrid cloud ingress filtering. Within two weeks, she identified a persistent lateral movement pattern hidden in session-layer handshakes - a threat missed by three SIEM alerts and two penetration tests. She now leads her company’s network segmentation initiative and was promoted to Principal Security Engineer. This is the missing manual for high-stakes security roles. It’s not about memorising acronyms. It’s about making faster, smarter, more strategic decisions - across firewalls, load balancers, encryption boundaries, identity layers, and API gateways - because you see the full stack in motion. Here’s how this course is structured to help you get there.Course Format & Delivery Details This course is meticulously designed for high-performing security professionals who need depth, clarity, and zero time waste. It’s an intensive, self-paced learning journey that delivers immediate applicability from Module One. Fully Self-Paced with Immediate Online Access
Begin the moment you’re ready. No waiting for cohort starts or fixed schedules. The entire curriculum unlocks instantly upon enrollment, so you can progress on your timeline - whether that’s 10 hours over two weeks or deep diving during a weekend mission-critical review. On-Demand, No Fixed Commitments
We know your schedule changes by the hour. That’s why every module, concept, and exercise is available 24/7, with no deadlines or forced pacing. You control when, where, and how you learn - ideal for production incidents, compliance windows, and global team coverage. Fast Results, Real Mastery
Most learners report applying Layer 5 session analysis or Layer 4 segmentation rules within 72 hours of starting. You’ll complete core protocol mapping and threat layering exercises in under 15 hours, with full certification achievable in 30–40 hours, depending on your prior exposure and desired depth. Lifetime Access with Ongoing Updates
Your enrollment includes permanent access to all course materials - including every future update. As new cloud-native protocols, TLS behaviours, and cross-layer attacks emerge, the content evolves. This isn’t a point-in-time learning experience. It’s your permanent reference-grade library. Mobile-Friendly, Global Access
Access all content securely from any device, anywhere in the world. Whether you’re troubleshooting in a data center, preparing for a design review, or commuting between sites, the interface adapts instantly, keeping your learning workflow uninterrupted. Direct Instructor Guidance
While the course is self-paced, you’re never working in isolation. Enrollees receive structured guidance, layered feedback on practical exercises, and access to expert insights curated by our network security architects - all embedded directly into the learning path to ensure clarity and eliminate confusion. Secure Your Career with a Globally Recognised Certificate
Upon completion, you’ll earn a Certificate of Completion issued by The Art of Service - a credential trusted by enterprises, government agencies, and cloud providers across six continents. The certificate verifies your mastery of OSI-based threat analysis, secure cloud design, and cross-layer security validation, and can be added to your LinkedIn profile, resume, and internal promotions portfolio. No Hidden Fees, Transparent Pricing
Pricing is straightforward and all-inclusive. You pay one fee with no recurring charges, no subscription traps, and no surprise costs. Everything you need - curriculum, tools, templates, certification - is included at point of purchase. Accepted Payment Methods
We accept Visa, Mastercard, and PayPal. Payments are processed securely through PCI-compliant gateways, ensuring full encryption and privacy protection. Zero-Risk Enrollment: Satisfied or Refunded
We guarantee it. If you complete the first two modules and don’t feel a significant gain in clarity, confidence, or practical insight, contact support for a full refund - no questions asked. Your success is our only metric. What Happens After Enrollment
After registration, you’ll receive a confirmation email with your learner ID. Your course access credentials and entry instructions will follow separately once your onboarding sequence is finalised. This ensures secure provisioning and optimal system readiness - a standard practice for all professional-grade technical courses. This Works Even If…
You’ve “seen the OSI Model before” but never connected it to real-world packet analysis. Even if you’ve spent years in perimeter security but feel uncertain about Layer 6 presentation logic in cloud APIs, or if you’ve been promoted into a strategic role requiring deeper protocol fluency, this course rebuilds your foundation with precision and relevance. Network Architects, Cloud Security Leads, and SOC Analysts have all used this course to overcome stagnation and breakthrough into higher-impact roles. One Zero Trust lead at a Fortune 500 company told us, “I thought I understood segmentation - until I dissected Layer 2 vs Layer 3 visibility gaps using this course. I rewrote our microsegmentation policy the next week.” We remove the risk. We deliver the clarity. And we ensure you walk away with something no one can take: irrefutable mastery.
Module 1: Foundations of the OSI Model in Modern Security - Understanding the origin and evolution of the OSI Model
- Why the OSI Model remains critical in cloud and hybrid environments
- Differentiating OSI from TCP/IP: practical security implications
- Mapping real-world attacks to OSI layers
- Defining Layer 1: Physical layer threats and mitigation strategies
- Physical medium vulnerabilities in cloud data centers
- Securing hardware redundancy and failover configurations
- Cable-level encryption and media protection standards
- DDoS targeting at Layer 1: detection and response
- Physical access control and insider threat at the transport layer
- Role of signal integrity in secure communications
- Protecting undersea and inter-facility fiber links
- Hardware-based tampering detection mechanisms
- Best practices for Layer 1 hardening in co-location facilities
- Integrating OSI Layer 1 checks into infrastructure audits
Module 2: Data Link Layer (Layer 2) Deep Dive for Security - MAC addressing and its role in enterprise security policy
- VLAN hopping attacks: how they work and how to block them
- Securing trunking protocols: DTP, STP, and VTP hardening
- MAC flooding prevention using port security and dynamic ARP inspection
- Private VLANs for internal segmentation
- 802.1X authentication and its place in LAN security
- LLDP and CDP risks in network reconnaissance
- Monitoring Layer 2 anomalies with switch logs and flow data
- Span port analysis for threat detection in switched networks
- Bluetooth and wireless LAN security as extension of Layer 2
- Protecting SD-WAN overlays at the data link level
- Automated tools for detecting rogue switches and hubs
- Layer 2 encryption: L2TP and MACsec deployment scenarios
- Ethernet frame manipulation and packet crafting
- Building Layer 2 filtering into network change management
Module 3: Network Layer (Layer 3) Security and Cloud Implications - IP addressing schemes and their security implications
- Subnetting for least-privilege access control
- Routing protocol vulnerabilities: RIP, OSPF, BGP exploitation
- Securing BGP with RPKI and prefix filtering
- ICMP-based reconnaissance and tunneling detection
- IP spoofing prevention using Unicast RPF
- Network segmentation using subnets and VRFs
- Hop-by-hop analysis of packet traversal in cloud networks
- Understanding TTL values for tracing attack origin
- Detecting tunneling protocols: GRE, IP-in-IP, IPsec transport mode
- Cloud provider routing tables and security responsibility
- NAT traversal techniques used in advanced evasion
- Geo-IP filtering and IP reputation integration
- Automated response to suspicious routing updates
- Layer 3 firewall rule optimisation and audit templates
Module 4: Transport Layer (Layer 4) Security Mastery - TCP vs UDP: security trade-offs in modern services
- TCP handshake exploitation: SYN floods and amplification attacks
- Port scanning techniques and defensive monitoring
- Stateful vs stateless inspection in cloud firewalls
- Port knocking and single packet authorisation (SPA)
- Service fingerprinting and version obfuscation
- UDP-based DDoS: DNS, NTP, SSDP amplification
- Session multiplexing and its impact on Layer 4 visibility
- Transport-level load balancing and security blind spots
- Microservice communication with ephemeral ports
- Zero Trust principles applied to Layer 4 connectivity
- Implementing service mesh sidecars at transport level
- Monitoring connection state exhaustion in Kubernetes clusters
- Transport Layer Security integration planning
- Building transport-aware alerting rules in SIEM
Module 5: Session Layer (Layer 5) Threat Analysis and Control - Defining session establishment, maintenance, and termination
- Session hijacking in web and API environments
- Cookie-based authentication risks and mitigation
- Session persistence in cloud load balancers
- Monitoring long-lived sessions for misuse
- Session resumption vulnerabilities in TLS 1.3
- Session token entropy and generation best practices
- Session state tracking across microservices
- Detecting credential replay attacks
- Time-based session expiry and adaptive timeouts
- Single Sign-On (SSO) and federation at Layer 5
- OAuth 2.0 and OpenID Connect session lifecycle
- Session isolation in multi-tenant SaaS platforms
- Analysing NetBIOS and RPC sessions for lateral movement
- Securing WebSocket connections and persistent channels
Module 6: Presentation Layer (Layer 6) Security Engineering - Role of encoding, encryption, and compression in security
- Data format vulnerabilities: JSON, XML, YAML parsing risks
- Schema validation and deserialisation attacks
- Canonicalisation attacks and encoding evasion
- Encryption at rest vs in-transit: mapping to Layer 6
- Data masking and tokenisation strategies
- Content negotiation risks: MIME type confusion
- Character set manipulation for input validation bypass
- Securing API payloads using structured format signing
- Protecting data integrity during transformation pipelines
- Zero Trust data handling at the presentation level
- Secure handling of binary vs text data in cloud APIs
- Schema enforcement using JSON Schema and Protobuf
- Automated detection of malformed input in logs
- Designing API contracts with security-by-design principles
Module 7: Application Layer (Layer 7) Defense in Depth - HTTP/HTTPS protocol security model deep dive
- REST API security: authentication, rate limiting, input sanitisation
- GraphQL security: query depth, complexity, and batching controls
- gRPC security configuration and metadata protection
- Web Application Firewall (WAF) policy tuning by Layer 7 context
- Preventing injection attacks: SQLi, XSS, command injection
- HTTP header security: HSTS, CSP, X-Frame-Options
- Referer and origin header validation
- Authentication token placement: headers vs cookies vs URL parameters
- API key rotation and revocation mechanisms
- OAuth scope validation and privilege escalation risks
- Client certificate authentication at Layer 7
- Securing webhooks and server-sent events
- Detecting bot traffic using Layer 7 behavioural patterns
- Log analysis of application-layer anomalies
Module 8: Cross-Layer Attack Surface Mapping - Identifying multi-layer attack vectors
- Protocol tunneling: DNS over HTTPS, ICMP tunneling, HTTP smuggling
- Exploiting layer transitions for privilege escalation
- Blind spots in security tools due to layer fragmentation
- Correlating logs across OSI layers for threat hunting
- Mapping attacker kill chains to layer-specific actions
- Defining layer handoff policies in secure architecture
- Analysing real breach reports through OSI lens
- Creating layered defence checklists for cloud deployments
- Layer-aware incident response playbooks
- Designing SOC alerts with cross-layer visibility
- Security Information and Event Management (SIEM) correlation rules
- Building a Layered Threat Matrix for your environment
- Training red teams using OSI-based attack simulations
- Blueprinting layer-specific detection coverage gaps
Module 9: Cloud-Native OSI Mapping and Virtualisation - Mapping virtual networks to OSI fundamentals
- VPC and VNet routing in public cloud environments
- Software-defined networking (SDN) and layer abstraction
- Virtual switch security in containerised platforms
- Overlay networks: VXLAN, Geneve, and GENEVE security
- Service mesh implementation across layers
- Egress filtering in serverless and container workloads
- Securing inter-pod communication in Kubernetes
- API gateways and ingress controllers as Layer 7 enforcement
- Sidecar proxies and mutual TLS in service meshes
- Cloud provider shared responsibility by OSI layer
- Serverless function execution and layer visibility
- Data flow in hybrid cloud multi-region architectures
- Monitoring east-west traffic in microservices
- Cloud-native firewalling and segmentation policies
Module 10: Hands-On Protocol Analysis and Packet Inspection - Using Wireshark for defensive network analysis
- Interpreting packet captures by OSI layer
- Filtering traffic using display and capture filters
- Analysing TCP retransmissions for performance and stealth
- Identifying anomalous TTL and window size values
- Detecting covert channels in packet headers
- Dissecting TLS handshakes for misconfigurations
- Spotting certificate anomalies in encrypted traffic
- Analysing HTTP/2 and HTTP/3 frame structures
- Identifying protocol violations that indicate compromise
- Baseline normal traffic patterns by layer
- Building custom packet analysis scripts in Python
- Automating detection of malformed packets
- Integrating PCAP analysis into threat intelligence platforms
- Creating forensic packet capture policies
Module 11: Secure Architecture Design Using the OSI Model - Designing layered defence strategies from ground up
- Aligning security zones with OSI layer boundaries
- Zero Trust architecture mapped to OSI layers
- Microsegmentation planning using layer-specific policies
- Encrypting data across layers: TLS, MACsec, IPsec combinations
- Hardening layered service dependencies in cloud apps
- Designing secure API gateways with layered validation
- Creating secure default configurations for cloud templates
- Threat modeling using STRIDE per OSI layer
- Drawing data flow diagrams with layer annotations
- Using the OSI Model in security architecture reviews
- Documenting layer-specific controls for compliance audits
- Integrating layer checks into CI/CD pipelines
- Defining secure handoffs between development and operations
- Architecture patterns for regulated industries using OSI framework
Module 12: Offensive Security and Penetration Testing by Layer - Reconnaissance techniques by OSI layer
- Layer 1: Physical access and signal interception
- Layer 2: ARP spoofing and MAC address impersonation
- Layer 3: IP spoofing and routing manipulation
- Layer 4: Port scanning and service fingerprinting
- Layer 5: Session hijacking and fixation attacks
- Layer 6: Data encoding and format exploits
- Layer 7: Web and API exploitation frameworks
- Using Burp Suite for application-layer attacks
- Automating layer-specific payloads with Metasploit
- Combining layers for advanced evasion
- Pass-the-hash in the context of session layer abuse
- Tunneling C2 traffic through allowed protocols
- Detecting and blocking offensive layer transitions
- Using red team findings to harden each layer
Module 13: Defence-in-Depth Tooling and Automation - Selecting tools by OSI layer coverage
- NIDS/NIPS configuration by layer-specific rules
- Firewall rule management across layers
- EDR/XDR telemetry analysis with layer context
- Cloud security posture management (CSPM) tools
- Network detection and response (NDR) platforms
- Automating response actions by layer
- Playbook development for layered incidents
- SOAR integration with OSI-based triggers
- Automated network segmentation updates
- Policy-as-code for layered security enforcement
- Using Terraform to codify layer-specific controls
- Enforcing secure defaults through infrastructure automation
- Integrating layer checks into DevSecOps pipelines
- Building layered compliance dashboards
Module 14: Incident Response and Forensics by OSI Layer - Responding to attacks with layer-specific containment
- Isolating compromised hosts at Layer 2 vs Layer 3
- Blocking malicious traffic at appropriate layer
- Collecting evidence without disrupting operations
- Forensic analysis of switch and router logs
- Analysing firewall and proxy logs for multi-stage attacks
- Reconstructing attack timelines using layered logs
- Determining attack entry and persistence layers
- Identifying exfiltration channels by protocol layer
- Memory forensics and process-to-port mapping
- Disk imaging with network context preservation
- Cloud logging: VPC Flow Logs, CloudTrail, and Audit Logs
- Using packet captures in legal and regulatory reporting
- Preserving chain of custody across digital artifacts
- Reporting breach scope using OSI-based impact assessment
Module 15: Compliance, Risk, and Governance Through the OSI Lens - Mapping PCI DSS controls to OSI layers
- HIPAA network requirements and Layer 3 segmentation
- GDPR data flow mapping and encryption responsibilities
- ISO/IEC 27001 controls by network layer
- NIST SP 800-53 network protection controls
- Demonstrating layered controls to auditors
- Risk assessment using layer-specific threat likelihood
- Calculating impact by potential layer compromise
- Documenting layered security in System Security Plans
- Third-party risk assessment using OSI framework
- Vendor security questionnaires with layer-specific questions
- Building OSI-aware security policies and standards
- Executive reporting on layered defence maturity
- Board-level communication using simplified OSI mapping
- Aligning security investment with highest-risk layers
Module 16: Certification Preparation and Career Advancement - Reviewing all modules for mastery retention
- Practice assessments with detailed feedback
- Layer-focused scenario-based challenges
- Mapping your experience to OSI-based competencies
- Updating your resume with OSI-based achievements
- LinkedIn profile optimisation for security roles
- Using the Certificate of Completion in job applications
- Preparing for technical interviews with OSI examples
- Speaking the language of security architecture with confidence
- Demonstrating layered thinking in design discussions
- Transitioning from operations to architecture roles
- Leading secure cloud migration projects
- Presenting layered defence strategies to executives
- Negotiating higher compensation based on proven mastery
- Lifetime access ensures you can revisit preparation tools anytime
- Understanding the origin and evolution of the OSI Model
- Why the OSI Model remains critical in cloud and hybrid environments
- Differentiating OSI from TCP/IP: practical security implications
- Mapping real-world attacks to OSI layers
- Defining Layer 1: Physical layer threats and mitigation strategies
- Physical medium vulnerabilities in cloud data centers
- Securing hardware redundancy and failover configurations
- Cable-level encryption and media protection standards
- DDoS targeting at Layer 1: detection and response
- Physical access control and insider threat at the transport layer
- Role of signal integrity in secure communications
- Protecting undersea and inter-facility fiber links
- Hardware-based tampering detection mechanisms
- Best practices for Layer 1 hardening in co-location facilities
- Integrating OSI Layer 1 checks into infrastructure audits
Module 2: Data Link Layer (Layer 2) Deep Dive for Security - MAC addressing and its role in enterprise security policy
- VLAN hopping attacks: how they work and how to block them
- Securing trunking protocols: DTP, STP, and VTP hardening
- MAC flooding prevention using port security and dynamic ARP inspection
- Private VLANs for internal segmentation
- 802.1X authentication and its place in LAN security
- LLDP and CDP risks in network reconnaissance
- Monitoring Layer 2 anomalies with switch logs and flow data
- Span port analysis for threat detection in switched networks
- Bluetooth and wireless LAN security as extension of Layer 2
- Protecting SD-WAN overlays at the data link level
- Automated tools for detecting rogue switches and hubs
- Layer 2 encryption: L2TP and MACsec deployment scenarios
- Ethernet frame manipulation and packet crafting
- Building Layer 2 filtering into network change management
Module 3: Network Layer (Layer 3) Security and Cloud Implications - IP addressing schemes and their security implications
- Subnetting for least-privilege access control
- Routing protocol vulnerabilities: RIP, OSPF, BGP exploitation
- Securing BGP with RPKI and prefix filtering
- ICMP-based reconnaissance and tunneling detection
- IP spoofing prevention using Unicast RPF
- Network segmentation using subnets and VRFs
- Hop-by-hop analysis of packet traversal in cloud networks
- Understanding TTL values for tracing attack origin
- Detecting tunneling protocols: GRE, IP-in-IP, IPsec transport mode
- Cloud provider routing tables and security responsibility
- NAT traversal techniques used in advanced evasion
- Geo-IP filtering and IP reputation integration
- Automated response to suspicious routing updates
- Layer 3 firewall rule optimisation and audit templates
Module 4: Transport Layer (Layer 4) Security Mastery - TCP vs UDP: security trade-offs in modern services
- TCP handshake exploitation: SYN floods and amplification attacks
- Port scanning techniques and defensive monitoring
- Stateful vs stateless inspection in cloud firewalls
- Port knocking and single packet authorisation (SPA)
- Service fingerprinting and version obfuscation
- UDP-based DDoS: DNS, NTP, SSDP amplification
- Session multiplexing and its impact on Layer 4 visibility
- Transport-level load balancing and security blind spots
- Microservice communication with ephemeral ports
- Zero Trust principles applied to Layer 4 connectivity
- Implementing service mesh sidecars at transport level
- Monitoring connection state exhaustion in Kubernetes clusters
- Transport Layer Security integration planning
- Building transport-aware alerting rules in SIEM
Module 5: Session Layer (Layer 5) Threat Analysis and Control - Defining session establishment, maintenance, and termination
- Session hijacking in web and API environments
- Cookie-based authentication risks and mitigation
- Session persistence in cloud load balancers
- Monitoring long-lived sessions for misuse
- Session resumption vulnerabilities in TLS 1.3
- Session token entropy and generation best practices
- Session state tracking across microservices
- Detecting credential replay attacks
- Time-based session expiry and adaptive timeouts
- Single Sign-On (SSO) and federation at Layer 5
- OAuth 2.0 and OpenID Connect session lifecycle
- Session isolation in multi-tenant SaaS platforms
- Analysing NetBIOS and RPC sessions for lateral movement
- Securing WebSocket connections and persistent channels
Module 6: Presentation Layer (Layer 6) Security Engineering - Role of encoding, encryption, and compression in security
- Data format vulnerabilities: JSON, XML, YAML parsing risks
- Schema validation and deserialisation attacks
- Canonicalisation attacks and encoding evasion
- Encryption at rest vs in-transit: mapping to Layer 6
- Data masking and tokenisation strategies
- Content negotiation risks: MIME type confusion
- Character set manipulation for input validation bypass
- Securing API payloads using structured format signing
- Protecting data integrity during transformation pipelines
- Zero Trust data handling at the presentation level
- Secure handling of binary vs text data in cloud APIs
- Schema enforcement using JSON Schema and Protobuf
- Automated detection of malformed input in logs
- Designing API contracts with security-by-design principles
Module 7: Application Layer (Layer 7) Defense in Depth - HTTP/HTTPS protocol security model deep dive
- REST API security: authentication, rate limiting, input sanitisation
- GraphQL security: query depth, complexity, and batching controls
- gRPC security configuration and metadata protection
- Web Application Firewall (WAF) policy tuning by Layer 7 context
- Preventing injection attacks: SQLi, XSS, command injection
- HTTP header security: HSTS, CSP, X-Frame-Options
- Referer and origin header validation
- Authentication token placement: headers vs cookies vs URL parameters
- API key rotation and revocation mechanisms
- OAuth scope validation and privilege escalation risks
- Client certificate authentication at Layer 7
- Securing webhooks and server-sent events
- Detecting bot traffic using Layer 7 behavioural patterns
- Log analysis of application-layer anomalies
Module 8: Cross-Layer Attack Surface Mapping - Identifying multi-layer attack vectors
- Protocol tunneling: DNS over HTTPS, ICMP tunneling, HTTP smuggling
- Exploiting layer transitions for privilege escalation
- Blind spots in security tools due to layer fragmentation
- Correlating logs across OSI layers for threat hunting
- Mapping attacker kill chains to layer-specific actions
- Defining layer handoff policies in secure architecture
- Analysing real breach reports through OSI lens
- Creating layered defence checklists for cloud deployments
- Layer-aware incident response playbooks
- Designing SOC alerts with cross-layer visibility
- Security Information and Event Management (SIEM) correlation rules
- Building a Layered Threat Matrix for your environment
- Training red teams using OSI-based attack simulations
- Blueprinting layer-specific detection coverage gaps
Module 9: Cloud-Native OSI Mapping and Virtualisation - Mapping virtual networks to OSI fundamentals
- VPC and VNet routing in public cloud environments
- Software-defined networking (SDN) and layer abstraction
- Virtual switch security in containerised platforms
- Overlay networks: VXLAN, Geneve, and GENEVE security
- Service mesh implementation across layers
- Egress filtering in serverless and container workloads
- Securing inter-pod communication in Kubernetes
- API gateways and ingress controllers as Layer 7 enforcement
- Sidecar proxies and mutual TLS in service meshes
- Cloud provider shared responsibility by OSI layer
- Serverless function execution and layer visibility
- Data flow in hybrid cloud multi-region architectures
- Monitoring east-west traffic in microservices
- Cloud-native firewalling and segmentation policies
Module 10: Hands-On Protocol Analysis and Packet Inspection - Using Wireshark for defensive network analysis
- Interpreting packet captures by OSI layer
- Filtering traffic using display and capture filters
- Analysing TCP retransmissions for performance and stealth
- Identifying anomalous TTL and window size values
- Detecting covert channels in packet headers
- Dissecting TLS handshakes for misconfigurations
- Spotting certificate anomalies in encrypted traffic
- Analysing HTTP/2 and HTTP/3 frame structures
- Identifying protocol violations that indicate compromise
- Baseline normal traffic patterns by layer
- Building custom packet analysis scripts in Python
- Automating detection of malformed packets
- Integrating PCAP analysis into threat intelligence platforms
- Creating forensic packet capture policies
Module 11: Secure Architecture Design Using the OSI Model - Designing layered defence strategies from ground up
- Aligning security zones with OSI layer boundaries
- Zero Trust architecture mapped to OSI layers
- Microsegmentation planning using layer-specific policies
- Encrypting data across layers: TLS, MACsec, IPsec combinations
- Hardening layered service dependencies in cloud apps
- Designing secure API gateways with layered validation
- Creating secure default configurations for cloud templates
- Threat modeling using STRIDE per OSI layer
- Drawing data flow diagrams with layer annotations
- Using the OSI Model in security architecture reviews
- Documenting layer-specific controls for compliance audits
- Integrating layer checks into CI/CD pipelines
- Defining secure handoffs between development and operations
- Architecture patterns for regulated industries using OSI framework
Module 12: Offensive Security and Penetration Testing by Layer - Reconnaissance techniques by OSI layer
- Layer 1: Physical access and signal interception
- Layer 2: ARP spoofing and MAC address impersonation
- Layer 3: IP spoofing and routing manipulation
- Layer 4: Port scanning and service fingerprinting
- Layer 5: Session hijacking and fixation attacks
- Layer 6: Data encoding and format exploits
- Layer 7: Web and API exploitation frameworks
- Using Burp Suite for application-layer attacks
- Automating layer-specific payloads with Metasploit
- Combining layers for advanced evasion
- Pass-the-hash in the context of session layer abuse
- Tunneling C2 traffic through allowed protocols
- Detecting and blocking offensive layer transitions
- Using red team findings to harden each layer
Module 13: Defence-in-Depth Tooling and Automation - Selecting tools by OSI layer coverage
- NIDS/NIPS configuration by layer-specific rules
- Firewall rule management across layers
- EDR/XDR telemetry analysis with layer context
- Cloud security posture management (CSPM) tools
- Network detection and response (NDR) platforms
- Automating response actions by layer
- Playbook development for layered incidents
- SOAR integration with OSI-based triggers
- Automated network segmentation updates
- Policy-as-code for layered security enforcement
- Using Terraform to codify layer-specific controls
- Enforcing secure defaults through infrastructure automation
- Integrating layer checks into DevSecOps pipelines
- Building layered compliance dashboards
Module 14: Incident Response and Forensics by OSI Layer - Responding to attacks with layer-specific containment
- Isolating compromised hosts at Layer 2 vs Layer 3
- Blocking malicious traffic at appropriate layer
- Collecting evidence without disrupting operations
- Forensic analysis of switch and router logs
- Analysing firewall and proxy logs for multi-stage attacks
- Reconstructing attack timelines using layered logs
- Determining attack entry and persistence layers
- Identifying exfiltration channels by protocol layer
- Memory forensics and process-to-port mapping
- Disk imaging with network context preservation
- Cloud logging: VPC Flow Logs, CloudTrail, and Audit Logs
- Using packet captures in legal and regulatory reporting
- Preserving chain of custody across digital artifacts
- Reporting breach scope using OSI-based impact assessment
Module 15: Compliance, Risk, and Governance Through the OSI Lens - Mapping PCI DSS controls to OSI layers
- HIPAA network requirements and Layer 3 segmentation
- GDPR data flow mapping and encryption responsibilities
- ISO/IEC 27001 controls by network layer
- NIST SP 800-53 network protection controls
- Demonstrating layered controls to auditors
- Risk assessment using layer-specific threat likelihood
- Calculating impact by potential layer compromise
- Documenting layered security in System Security Plans
- Third-party risk assessment using OSI framework
- Vendor security questionnaires with layer-specific questions
- Building OSI-aware security policies and standards
- Executive reporting on layered defence maturity
- Board-level communication using simplified OSI mapping
- Aligning security investment with highest-risk layers
Module 16: Certification Preparation and Career Advancement - Reviewing all modules for mastery retention
- Practice assessments with detailed feedback
- Layer-focused scenario-based challenges
- Mapping your experience to OSI-based competencies
- Updating your resume with OSI-based achievements
- LinkedIn profile optimisation for security roles
- Using the Certificate of Completion in job applications
- Preparing for technical interviews with OSI examples
- Speaking the language of security architecture with confidence
- Demonstrating layered thinking in design discussions
- Transitioning from operations to architecture roles
- Leading secure cloud migration projects
- Presenting layered defence strategies to executives
- Negotiating higher compensation based on proven mastery
- Lifetime access ensures you can revisit preparation tools anytime
- IP addressing schemes and their security implications
- Subnetting for least-privilege access control
- Routing protocol vulnerabilities: RIP, OSPF, BGP exploitation
- Securing BGP with RPKI and prefix filtering
- ICMP-based reconnaissance and tunneling detection
- IP spoofing prevention using Unicast RPF
- Network segmentation using subnets and VRFs
- Hop-by-hop analysis of packet traversal in cloud networks
- Understanding TTL values for tracing attack origin
- Detecting tunneling protocols: GRE, IP-in-IP, IPsec transport mode
- Cloud provider routing tables and security responsibility
- NAT traversal techniques used in advanced evasion
- Geo-IP filtering and IP reputation integration
- Automated response to suspicious routing updates
- Layer 3 firewall rule optimisation and audit templates
Module 4: Transport Layer (Layer 4) Security Mastery - TCP vs UDP: security trade-offs in modern services
- TCP handshake exploitation: SYN floods and amplification attacks
- Port scanning techniques and defensive monitoring
- Stateful vs stateless inspection in cloud firewalls
- Port knocking and single packet authorisation (SPA)
- Service fingerprinting and version obfuscation
- UDP-based DDoS: DNS, NTP, SSDP amplification
- Session multiplexing and its impact on Layer 4 visibility
- Transport-level load balancing and security blind spots
- Microservice communication with ephemeral ports
- Zero Trust principles applied to Layer 4 connectivity
- Implementing service mesh sidecars at transport level
- Monitoring connection state exhaustion in Kubernetes clusters
- Transport Layer Security integration planning
- Building transport-aware alerting rules in SIEM
Module 5: Session Layer (Layer 5) Threat Analysis and Control - Defining session establishment, maintenance, and termination
- Session hijacking in web and API environments
- Cookie-based authentication risks and mitigation
- Session persistence in cloud load balancers
- Monitoring long-lived sessions for misuse
- Session resumption vulnerabilities in TLS 1.3
- Session token entropy and generation best practices
- Session state tracking across microservices
- Detecting credential replay attacks
- Time-based session expiry and adaptive timeouts
- Single Sign-On (SSO) and federation at Layer 5
- OAuth 2.0 and OpenID Connect session lifecycle
- Session isolation in multi-tenant SaaS platforms
- Analysing NetBIOS and RPC sessions for lateral movement
- Securing WebSocket connections and persistent channels
Module 6: Presentation Layer (Layer 6) Security Engineering - Role of encoding, encryption, and compression in security
- Data format vulnerabilities: JSON, XML, YAML parsing risks
- Schema validation and deserialisation attacks
- Canonicalisation attacks and encoding evasion
- Encryption at rest vs in-transit: mapping to Layer 6
- Data masking and tokenisation strategies
- Content negotiation risks: MIME type confusion
- Character set manipulation for input validation bypass
- Securing API payloads using structured format signing
- Protecting data integrity during transformation pipelines
- Zero Trust data handling at the presentation level
- Secure handling of binary vs text data in cloud APIs
- Schema enforcement using JSON Schema and Protobuf
- Automated detection of malformed input in logs
- Designing API contracts with security-by-design principles
Module 7: Application Layer (Layer 7) Defense in Depth - HTTP/HTTPS protocol security model deep dive
- REST API security: authentication, rate limiting, input sanitisation
- GraphQL security: query depth, complexity, and batching controls
- gRPC security configuration and metadata protection
- Web Application Firewall (WAF) policy tuning by Layer 7 context
- Preventing injection attacks: SQLi, XSS, command injection
- HTTP header security: HSTS, CSP, X-Frame-Options
- Referer and origin header validation
- Authentication token placement: headers vs cookies vs URL parameters
- API key rotation and revocation mechanisms
- OAuth scope validation and privilege escalation risks
- Client certificate authentication at Layer 7
- Securing webhooks and server-sent events
- Detecting bot traffic using Layer 7 behavioural patterns
- Log analysis of application-layer anomalies
Module 8: Cross-Layer Attack Surface Mapping - Identifying multi-layer attack vectors
- Protocol tunneling: DNS over HTTPS, ICMP tunneling, HTTP smuggling
- Exploiting layer transitions for privilege escalation
- Blind spots in security tools due to layer fragmentation
- Correlating logs across OSI layers for threat hunting
- Mapping attacker kill chains to layer-specific actions
- Defining layer handoff policies in secure architecture
- Analysing real breach reports through OSI lens
- Creating layered defence checklists for cloud deployments
- Layer-aware incident response playbooks
- Designing SOC alerts with cross-layer visibility
- Security Information and Event Management (SIEM) correlation rules
- Building a Layered Threat Matrix for your environment
- Training red teams using OSI-based attack simulations
- Blueprinting layer-specific detection coverage gaps
Module 9: Cloud-Native OSI Mapping and Virtualisation - Mapping virtual networks to OSI fundamentals
- VPC and VNet routing in public cloud environments
- Software-defined networking (SDN) and layer abstraction
- Virtual switch security in containerised platforms
- Overlay networks: VXLAN, Geneve, and GENEVE security
- Service mesh implementation across layers
- Egress filtering in serverless and container workloads
- Securing inter-pod communication in Kubernetes
- API gateways and ingress controllers as Layer 7 enforcement
- Sidecar proxies and mutual TLS in service meshes
- Cloud provider shared responsibility by OSI layer
- Serverless function execution and layer visibility
- Data flow in hybrid cloud multi-region architectures
- Monitoring east-west traffic in microservices
- Cloud-native firewalling and segmentation policies
Module 10: Hands-On Protocol Analysis and Packet Inspection - Using Wireshark for defensive network analysis
- Interpreting packet captures by OSI layer
- Filtering traffic using display and capture filters
- Analysing TCP retransmissions for performance and stealth
- Identifying anomalous TTL and window size values
- Detecting covert channels in packet headers
- Dissecting TLS handshakes for misconfigurations
- Spotting certificate anomalies in encrypted traffic
- Analysing HTTP/2 and HTTP/3 frame structures
- Identifying protocol violations that indicate compromise
- Baseline normal traffic patterns by layer
- Building custom packet analysis scripts in Python
- Automating detection of malformed packets
- Integrating PCAP analysis into threat intelligence platforms
- Creating forensic packet capture policies
Module 11: Secure Architecture Design Using the OSI Model - Designing layered defence strategies from ground up
- Aligning security zones with OSI layer boundaries
- Zero Trust architecture mapped to OSI layers
- Microsegmentation planning using layer-specific policies
- Encrypting data across layers: TLS, MACsec, IPsec combinations
- Hardening layered service dependencies in cloud apps
- Designing secure API gateways with layered validation
- Creating secure default configurations for cloud templates
- Threat modeling using STRIDE per OSI layer
- Drawing data flow diagrams with layer annotations
- Using the OSI Model in security architecture reviews
- Documenting layer-specific controls for compliance audits
- Integrating layer checks into CI/CD pipelines
- Defining secure handoffs between development and operations
- Architecture patterns for regulated industries using OSI framework
Module 12: Offensive Security and Penetration Testing by Layer - Reconnaissance techniques by OSI layer
- Layer 1: Physical access and signal interception
- Layer 2: ARP spoofing and MAC address impersonation
- Layer 3: IP spoofing and routing manipulation
- Layer 4: Port scanning and service fingerprinting
- Layer 5: Session hijacking and fixation attacks
- Layer 6: Data encoding and format exploits
- Layer 7: Web and API exploitation frameworks
- Using Burp Suite for application-layer attacks
- Automating layer-specific payloads with Metasploit
- Combining layers for advanced evasion
- Pass-the-hash in the context of session layer abuse
- Tunneling C2 traffic through allowed protocols
- Detecting and blocking offensive layer transitions
- Using red team findings to harden each layer
Module 13: Defence-in-Depth Tooling and Automation - Selecting tools by OSI layer coverage
- NIDS/NIPS configuration by layer-specific rules
- Firewall rule management across layers
- EDR/XDR telemetry analysis with layer context
- Cloud security posture management (CSPM) tools
- Network detection and response (NDR) platforms
- Automating response actions by layer
- Playbook development for layered incidents
- SOAR integration with OSI-based triggers
- Automated network segmentation updates
- Policy-as-code for layered security enforcement
- Using Terraform to codify layer-specific controls
- Enforcing secure defaults through infrastructure automation
- Integrating layer checks into DevSecOps pipelines
- Building layered compliance dashboards
Module 14: Incident Response and Forensics by OSI Layer - Responding to attacks with layer-specific containment
- Isolating compromised hosts at Layer 2 vs Layer 3
- Blocking malicious traffic at appropriate layer
- Collecting evidence without disrupting operations
- Forensic analysis of switch and router logs
- Analysing firewall and proxy logs for multi-stage attacks
- Reconstructing attack timelines using layered logs
- Determining attack entry and persistence layers
- Identifying exfiltration channels by protocol layer
- Memory forensics and process-to-port mapping
- Disk imaging with network context preservation
- Cloud logging: VPC Flow Logs, CloudTrail, and Audit Logs
- Using packet captures in legal and regulatory reporting
- Preserving chain of custody across digital artifacts
- Reporting breach scope using OSI-based impact assessment
Module 15: Compliance, Risk, and Governance Through the OSI Lens - Mapping PCI DSS controls to OSI layers
- HIPAA network requirements and Layer 3 segmentation
- GDPR data flow mapping and encryption responsibilities
- ISO/IEC 27001 controls by network layer
- NIST SP 800-53 network protection controls
- Demonstrating layered controls to auditors
- Risk assessment using layer-specific threat likelihood
- Calculating impact by potential layer compromise
- Documenting layered security in System Security Plans
- Third-party risk assessment using OSI framework
- Vendor security questionnaires with layer-specific questions
- Building OSI-aware security policies and standards
- Executive reporting on layered defence maturity
- Board-level communication using simplified OSI mapping
- Aligning security investment with highest-risk layers
Module 16: Certification Preparation and Career Advancement - Reviewing all modules for mastery retention
- Practice assessments with detailed feedback
- Layer-focused scenario-based challenges
- Mapping your experience to OSI-based competencies
- Updating your resume with OSI-based achievements
- LinkedIn profile optimisation for security roles
- Using the Certificate of Completion in job applications
- Preparing for technical interviews with OSI examples
- Speaking the language of security architecture with confidence
- Demonstrating layered thinking in design discussions
- Transitioning from operations to architecture roles
- Leading secure cloud migration projects
- Presenting layered defence strategies to executives
- Negotiating higher compensation based on proven mastery
- Lifetime access ensures you can revisit preparation tools anytime
- Defining session establishment, maintenance, and termination
- Session hijacking in web and API environments
- Cookie-based authentication risks and mitigation
- Session persistence in cloud load balancers
- Monitoring long-lived sessions for misuse
- Session resumption vulnerabilities in TLS 1.3
- Session token entropy and generation best practices
- Session state tracking across microservices
- Detecting credential replay attacks
- Time-based session expiry and adaptive timeouts
- Single Sign-On (SSO) and federation at Layer 5
- OAuth 2.0 and OpenID Connect session lifecycle
- Session isolation in multi-tenant SaaS platforms
- Analysing NetBIOS and RPC sessions for lateral movement
- Securing WebSocket connections and persistent channels
Module 6: Presentation Layer (Layer 6) Security Engineering - Role of encoding, encryption, and compression in security
- Data format vulnerabilities: JSON, XML, YAML parsing risks
- Schema validation and deserialisation attacks
- Canonicalisation attacks and encoding evasion
- Encryption at rest vs in-transit: mapping to Layer 6
- Data masking and tokenisation strategies
- Content negotiation risks: MIME type confusion
- Character set manipulation for input validation bypass
- Securing API payloads using structured format signing
- Protecting data integrity during transformation pipelines
- Zero Trust data handling at the presentation level
- Secure handling of binary vs text data in cloud APIs
- Schema enforcement using JSON Schema and Protobuf
- Automated detection of malformed input in logs
- Designing API contracts with security-by-design principles
Module 7: Application Layer (Layer 7) Defense in Depth - HTTP/HTTPS protocol security model deep dive
- REST API security: authentication, rate limiting, input sanitisation
- GraphQL security: query depth, complexity, and batching controls
- gRPC security configuration and metadata protection
- Web Application Firewall (WAF) policy tuning by Layer 7 context
- Preventing injection attacks: SQLi, XSS, command injection
- HTTP header security: HSTS, CSP, X-Frame-Options
- Referer and origin header validation
- Authentication token placement: headers vs cookies vs URL parameters
- API key rotation and revocation mechanisms
- OAuth scope validation and privilege escalation risks
- Client certificate authentication at Layer 7
- Securing webhooks and server-sent events
- Detecting bot traffic using Layer 7 behavioural patterns
- Log analysis of application-layer anomalies
Module 8: Cross-Layer Attack Surface Mapping - Identifying multi-layer attack vectors
- Protocol tunneling: DNS over HTTPS, ICMP tunneling, HTTP smuggling
- Exploiting layer transitions for privilege escalation
- Blind spots in security tools due to layer fragmentation
- Correlating logs across OSI layers for threat hunting
- Mapping attacker kill chains to layer-specific actions
- Defining layer handoff policies in secure architecture
- Analysing real breach reports through OSI lens
- Creating layered defence checklists for cloud deployments
- Layer-aware incident response playbooks
- Designing SOC alerts with cross-layer visibility
- Security Information and Event Management (SIEM) correlation rules
- Building a Layered Threat Matrix for your environment
- Training red teams using OSI-based attack simulations
- Blueprinting layer-specific detection coverage gaps
Module 9: Cloud-Native OSI Mapping and Virtualisation - Mapping virtual networks to OSI fundamentals
- VPC and VNet routing in public cloud environments
- Software-defined networking (SDN) and layer abstraction
- Virtual switch security in containerised platforms
- Overlay networks: VXLAN, Geneve, and GENEVE security
- Service mesh implementation across layers
- Egress filtering in serverless and container workloads
- Securing inter-pod communication in Kubernetes
- API gateways and ingress controllers as Layer 7 enforcement
- Sidecar proxies and mutual TLS in service meshes
- Cloud provider shared responsibility by OSI layer
- Serverless function execution and layer visibility
- Data flow in hybrid cloud multi-region architectures
- Monitoring east-west traffic in microservices
- Cloud-native firewalling and segmentation policies
Module 10: Hands-On Protocol Analysis and Packet Inspection - Using Wireshark for defensive network analysis
- Interpreting packet captures by OSI layer
- Filtering traffic using display and capture filters
- Analysing TCP retransmissions for performance and stealth
- Identifying anomalous TTL and window size values
- Detecting covert channels in packet headers
- Dissecting TLS handshakes for misconfigurations
- Spotting certificate anomalies in encrypted traffic
- Analysing HTTP/2 and HTTP/3 frame structures
- Identifying protocol violations that indicate compromise
- Baseline normal traffic patterns by layer
- Building custom packet analysis scripts in Python
- Automating detection of malformed packets
- Integrating PCAP analysis into threat intelligence platforms
- Creating forensic packet capture policies
Module 11: Secure Architecture Design Using the OSI Model - Designing layered defence strategies from ground up
- Aligning security zones with OSI layer boundaries
- Zero Trust architecture mapped to OSI layers
- Microsegmentation planning using layer-specific policies
- Encrypting data across layers: TLS, MACsec, IPsec combinations
- Hardening layered service dependencies in cloud apps
- Designing secure API gateways with layered validation
- Creating secure default configurations for cloud templates
- Threat modeling using STRIDE per OSI layer
- Drawing data flow diagrams with layer annotations
- Using the OSI Model in security architecture reviews
- Documenting layer-specific controls for compliance audits
- Integrating layer checks into CI/CD pipelines
- Defining secure handoffs between development and operations
- Architecture patterns for regulated industries using OSI framework
Module 12: Offensive Security and Penetration Testing by Layer - Reconnaissance techniques by OSI layer
- Layer 1: Physical access and signal interception
- Layer 2: ARP spoofing and MAC address impersonation
- Layer 3: IP spoofing and routing manipulation
- Layer 4: Port scanning and service fingerprinting
- Layer 5: Session hijacking and fixation attacks
- Layer 6: Data encoding and format exploits
- Layer 7: Web and API exploitation frameworks
- Using Burp Suite for application-layer attacks
- Automating layer-specific payloads with Metasploit
- Combining layers for advanced evasion
- Pass-the-hash in the context of session layer abuse
- Tunneling C2 traffic through allowed protocols
- Detecting and blocking offensive layer transitions
- Using red team findings to harden each layer
Module 13: Defence-in-Depth Tooling and Automation - Selecting tools by OSI layer coverage
- NIDS/NIPS configuration by layer-specific rules
- Firewall rule management across layers
- EDR/XDR telemetry analysis with layer context
- Cloud security posture management (CSPM) tools
- Network detection and response (NDR) platforms
- Automating response actions by layer
- Playbook development for layered incidents
- SOAR integration with OSI-based triggers
- Automated network segmentation updates
- Policy-as-code for layered security enforcement
- Using Terraform to codify layer-specific controls
- Enforcing secure defaults through infrastructure automation
- Integrating layer checks into DevSecOps pipelines
- Building layered compliance dashboards
Module 14: Incident Response and Forensics by OSI Layer - Responding to attacks with layer-specific containment
- Isolating compromised hosts at Layer 2 vs Layer 3
- Blocking malicious traffic at appropriate layer
- Collecting evidence without disrupting operations
- Forensic analysis of switch and router logs
- Analysing firewall and proxy logs for multi-stage attacks
- Reconstructing attack timelines using layered logs
- Determining attack entry and persistence layers
- Identifying exfiltration channels by protocol layer
- Memory forensics and process-to-port mapping
- Disk imaging with network context preservation
- Cloud logging: VPC Flow Logs, CloudTrail, and Audit Logs
- Using packet captures in legal and regulatory reporting
- Preserving chain of custody across digital artifacts
- Reporting breach scope using OSI-based impact assessment
Module 15: Compliance, Risk, and Governance Through the OSI Lens - Mapping PCI DSS controls to OSI layers
- HIPAA network requirements and Layer 3 segmentation
- GDPR data flow mapping and encryption responsibilities
- ISO/IEC 27001 controls by network layer
- NIST SP 800-53 network protection controls
- Demonstrating layered controls to auditors
- Risk assessment using layer-specific threat likelihood
- Calculating impact by potential layer compromise
- Documenting layered security in System Security Plans
- Third-party risk assessment using OSI framework
- Vendor security questionnaires with layer-specific questions
- Building OSI-aware security policies and standards
- Executive reporting on layered defence maturity
- Board-level communication using simplified OSI mapping
- Aligning security investment with highest-risk layers
Module 16: Certification Preparation and Career Advancement - Reviewing all modules for mastery retention
- Practice assessments with detailed feedback
- Layer-focused scenario-based challenges
- Mapping your experience to OSI-based competencies
- Updating your resume with OSI-based achievements
- LinkedIn profile optimisation for security roles
- Using the Certificate of Completion in job applications
- Preparing for technical interviews with OSI examples
- Speaking the language of security architecture with confidence
- Demonstrating layered thinking in design discussions
- Transitioning from operations to architecture roles
- Leading secure cloud migration projects
- Presenting layered defence strategies to executives
- Negotiating higher compensation based on proven mastery
- Lifetime access ensures you can revisit preparation tools anytime
- HTTP/HTTPS protocol security model deep dive
- REST API security: authentication, rate limiting, input sanitisation
- GraphQL security: query depth, complexity, and batching controls
- gRPC security configuration and metadata protection
- Web Application Firewall (WAF) policy tuning by Layer 7 context
- Preventing injection attacks: SQLi, XSS, command injection
- HTTP header security: HSTS, CSP, X-Frame-Options
- Referer and origin header validation
- Authentication token placement: headers vs cookies vs URL parameters
- API key rotation and revocation mechanisms
- OAuth scope validation and privilege escalation risks
- Client certificate authentication at Layer 7
- Securing webhooks and server-sent events
- Detecting bot traffic using Layer 7 behavioural patterns
- Log analysis of application-layer anomalies
Module 8: Cross-Layer Attack Surface Mapping - Identifying multi-layer attack vectors
- Protocol tunneling: DNS over HTTPS, ICMP tunneling, HTTP smuggling
- Exploiting layer transitions for privilege escalation
- Blind spots in security tools due to layer fragmentation
- Correlating logs across OSI layers for threat hunting
- Mapping attacker kill chains to layer-specific actions
- Defining layer handoff policies in secure architecture
- Analysing real breach reports through OSI lens
- Creating layered defence checklists for cloud deployments
- Layer-aware incident response playbooks
- Designing SOC alerts with cross-layer visibility
- Security Information and Event Management (SIEM) correlation rules
- Building a Layered Threat Matrix for your environment
- Training red teams using OSI-based attack simulations
- Blueprinting layer-specific detection coverage gaps
Module 9: Cloud-Native OSI Mapping and Virtualisation - Mapping virtual networks to OSI fundamentals
- VPC and VNet routing in public cloud environments
- Software-defined networking (SDN) and layer abstraction
- Virtual switch security in containerised platforms
- Overlay networks: VXLAN, Geneve, and GENEVE security
- Service mesh implementation across layers
- Egress filtering in serverless and container workloads
- Securing inter-pod communication in Kubernetes
- API gateways and ingress controllers as Layer 7 enforcement
- Sidecar proxies and mutual TLS in service meshes
- Cloud provider shared responsibility by OSI layer
- Serverless function execution and layer visibility
- Data flow in hybrid cloud multi-region architectures
- Monitoring east-west traffic in microservices
- Cloud-native firewalling and segmentation policies
Module 10: Hands-On Protocol Analysis and Packet Inspection - Using Wireshark for defensive network analysis
- Interpreting packet captures by OSI layer
- Filtering traffic using display and capture filters
- Analysing TCP retransmissions for performance and stealth
- Identifying anomalous TTL and window size values
- Detecting covert channels in packet headers
- Dissecting TLS handshakes for misconfigurations
- Spotting certificate anomalies in encrypted traffic
- Analysing HTTP/2 and HTTP/3 frame structures
- Identifying protocol violations that indicate compromise
- Baseline normal traffic patterns by layer
- Building custom packet analysis scripts in Python
- Automating detection of malformed packets
- Integrating PCAP analysis into threat intelligence platforms
- Creating forensic packet capture policies
Module 11: Secure Architecture Design Using the OSI Model - Designing layered defence strategies from ground up
- Aligning security zones with OSI layer boundaries
- Zero Trust architecture mapped to OSI layers
- Microsegmentation planning using layer-specific policies
- Encrypting data across layers: TLS, MACsec, IPsec combinations
- Hardening layered service dependencies in cloud apps
- Designing secure API gateways with layered validation
- Creating secure default configurations for cloud templates
- Threat modeling using STRIDE per OSI layer
- Drawing data flow diagrams with layer annotations
- Using the OSI Model in security architecture reviews
- Documenting layer-specific controls for compliance audits
- Integrating layer checks into CI/CD pipelines
- Defining secure handoffs between development and operations
- Architecture patterns for regulated industries using OSI framework
Module 12: Offensive Security and Penetration Testing by Layer - Reconnaissance techniques by OSI layer
- Layer 1: Physical access and signal interception
- Layer 2: ARP spoofing and MAC address impersonation
- Layer 3: IP spoofing and routing manipulation
- Layer 4: Port scanning and service fingerprinting
- Layer 5: Session hijacking and fixation attacks
- Layer 6: Data encoding and format exploits
- Layer 7: Web and API exploitation frameworks
- Using Burp Suite for application-layer attacks
- Automating layer-specific payloads with Metasploit
- Combining layers for advanced evasion
- Pass-the-hash in the context of session layer abuse
- Tunneling C2 traffic through allowed protocols
- Detecting and blocking offensive layer transitions
- Using red team findings to harden each layer
Module 13: Defence-in-Depth Tooling and Automation - Selecting tools by OSI layer coverage
- NIDS/NIPS configuration by layer-specific rules
- Firewall rule management across layers
- EDR/XDR telemetry analysis with layer context
- Cloud security posture management (CSPM) tools
- Network detection and response (NDR) platforms
- Automating response actions by layer
- Playbook development for layered incidents
- SOAR integration with OSI-based triggers
- Automated network segmentation updates
- Policy-as-code for layered security enforcement
- Using Terraform to codify layer-specific controls
- Enforcing secure defaults through infrastructure automation
- Integrating layer checks into DevSecOps pipelines
- Building layered compliance dashboards
Module 14: Incident Response and Forensics by OSI Layer - Responding to attacks with layer-specific containment
- Isolating compromised hosts at Layer 2 vs Layer 3
- Blocking malicious traffic at appropriate layer
- Collecting evidence without disrupting operations
- Forensic analysis of switch and router logs
- Analysing firewall and proxy logs for multi-stage attacks
- Reconstructing attack timelines using layered logs
- Determining attack entry and persistence layers
- Identifying exfiltration channels by protocol layer
- Memory forensics and process-to-port mapping
- Disk imaging with network context preservation
- Cloud logging: VPC Flow Logs, CloudTrail, and Audit Logs
- Using packet captures in legal and regulatory reporting
- Preserving chain of custody across digital artifacts
- Reporting breach scope using OSI-based impact assessment
Module 15: Compliance, Risk, and Governance Through the OSI Lens - Mapping PCI DSS controls to OSI layers
- HIPAA network requirements and Layer 3 segmentation
- GDPR data flow mapping and encryption responsibilities
- ISO/IEC 27001 controls by network layer
- NIST SP 800-53 network protection controls
- Demonstrating layered controls to auditors
- Risk assessment using layer-specific threat likelihood
- Calculating impact by potential layer compromise
- Documenting layered security in System Security Plans
- Third-party risk assessment using OSI framework
- Vendor security questionnaires with layer-specific questions
- Building OSI-aware security policies and standards
- Executive reporting on layered defence maturity
- Board-level communication using simplified OSI mapping
- Aligning security investment with highest-risk layers
Module 16: Certification Preparation and Career Advancement - Reviewing all modules for mastery retention
- Practice assessments with detailed feedback
- Layer-focused scenario-based challenges
- Mapping your experience to OSI-based competencies
- Updating your resume with OSI-based achievements
- LinkedIn profile optimisation for security roles
- Using the Certificate of Completion in job applications
- Preparing for technical interviews with OSI examples
- Speaking the language of security architecture with confidence
- Demonstrating layered thinking in design discussions
- Transitioning from operations to architecture roles
- Leading secure cloud migration projects
- Presenting layered defence strategies to executives
- Negotiating higher compensation based on proven mastery
- Lifetime access ensures you can revisit preparation tools anytime
- Mapping virtual networks to OSI fundamentals
- VPC and VNet routing in public cloud environments
- Software-defined networking (SDN) and layer abstraction
- Virtual switch security in containerised platforms
- Overlay networks: VXLAN, Geneve, and GENEVE security
- Service mesh implementation across layers
- Egress filtering in serverless and container workloads
- Securing inter-pod communication in Kubernetes
- API gateways and ingress controllers as Layer 7 enforcement
- Sidecar proxies and mutual TLS in service meshes
- Cloud provider shared responsibility by OSI layer
- Serverless function execution and layer visibility
- Data flow in hybrid cloud multi-region architectures
- Monitoring east-west traffic in microservices
- Cloud-native firewalling and segmentation policies
Module 10: Hands-On Protocol Analysis and Packet Inspection - Using Wireshark for defensive network analysis
- Interpreting packet captures by OSI layer
- Filtering traffic using display and capture filters
- Analysing TCP retransmissions for performance and stealth
- Identifying anomalous TTL and window size values
- Detecting covert channels in packet headers
- Dissecting TLS handshakes for misconfigurations
- Spotting certificate anomalies in encrypted traffic
- Analysing HTTP/2 and HTTP/3 frame structures
- Identifying protocol violations that indicate compromise
- Baseline normal traffic patterns by layer
- Building custom packet analysis scripts in Python
- Automating detection of malformed packets
- Integrating PCAP analysis into threat intelligence platforms
- Creating forensic packet capture policies
Module 11: Secure Architecture Design Using the OSI Model - Designing layered defence strategies from ground up
- Aligning security zones with OSI layer boundaries
- Zero Trust architecture mapped to OSI layers
- Microsegmentation planning using layer-specific policies
- Encrypting data across layers: TLS, MACsec, IPsec combinations
- Hardening layered service dependencies in cloud apps
- Designing secure API gateways with layered validation
- Creating secure default configurations for cloud templates
- Threat modeling using STRIDE per OSI layer
- Drawing data flow diagrams with layer annotations
- Using the OSI Model in security architecture reviews
- Documenting layer-specific controls for compliance audits
- Integrating layer checks into CI/CD pipelines
- Defining secure handoffs between development and operations
- Architecture patterns for regulated industries using OSI framework
Module 12: Offensive Security and Penetration Testing by Layer - Reconnaissance techniques by OSI layer
- Layer 1: Physical access and signal interception
- Layer 2: ARP spoofing and MAC address impersonation
- Layer 3: IP spoofing and routing manipulation
- Layer 4: Port scanning and service fingerprinting
- Layer 5: Session hijacking and fixation attacks
- Layer 6: Data encoding and format exploits
- Layer 7: Web and API exploitation frameworks
- Using Burp Suite for application-layer attacks
- Automating layer-specific payloads with Metasploit
- Combining layers for advanced evasion
- Pass-the-hash in the context of session layer abuse
- Tunneling C2 traffic through allowed protocols
- Detecting and blocking offensive layer transitions
- Using red team findings to harden each layer
Module 13: Defence-in-Depth Tooling and Automation - Selecting tools by OSI layer coverage
- NIDS/NIPS configuration by layer-specific rules
- Firewall rule management across layers
- EDR/XDR telemetry analysis with layer context
- Cloud security posture management (CSPM) tools
- Network detection and response (NDR) platforms
- Automating response actions by layer
- Playbook development for layered incidents
- SOAR integration with OSI-based triggers
- Automated network segmentation updates
- Policy-as-code for layered security enforcement
- Using Terraform to codify layer-specific controls
- Enforcing secure defaults through infrastructure automation
- Integrating layer checks into DevSecOps pipelines
- Building layered compliance dashboards
Module 14: Incident Response and Forensics by OSI Layer - Responding to attacks with layer-specific containment
- Isolating compromised hosts at Layer 2 vs Layer 3
- Blocking malicious traffic at appropriate layer
- Collecting evidence without disrupting operations
- Forensic analysis of switch and router logs
- Analysing firewall and proxy logs for multi-stage attacks
- Reconstructing attack timelines using layered logs
- Determining attack entry and persistence layers
- Identifying exfiltration channels by protocol layer
- Memory forensics and process-to-port mapping
- Disk imaging with network context preservation
- Cloud logging: VPC Flow Logs, CloudTrail, and Audit Logs
- Using packet captures in legal and regulatory reporting
- Preserving chain of custody across digital artifacts
- Reporting breach scope using OSI-based impact assessment
Module 15: Compliance, Risk, and Governance Through the OSI Lens - Mapping PCI DSS controls to OSI layers
- HIPAA network requirements and Layer 3 segmentation
- GDPR data flow mapping and encryption responsibilities
- ISO/IEC 27001 controls by network layer
- NIST SP 800-53 network protection controls
- Demonstrating layered controls to auditors
- Risk assessment using layer-specific threat likelihood
- Calculating impact by potential layer compromise
- Documenting layered security in System Security Plans
- Third-party risk assessment using OSI framework
- Vendor security questionnaires with layer-specific questions
- Building OSI-aware security policies and standards
- Executive reporting on layered defence maturity
- Board-level communication using simplified OSI mapping
- Aligning security investment with highest-risk layers
Module 16: Certification Preparation and Career Advancement - Reviewing all modules for mastery retention
- Practice assessments with detailed feedback
- Layer-focused scenario-based challenges
- Mapping your experience to OSI-based competencies
- Updating your resume with OSI-based achievements
- LinkedIn profile optimisation for security roles
- Using the Certificate of Completion in job applications
- Preparing for technical interviews with OSI examples
- Speaking the language of security architecture with confidence
- Demonstrating layered thinking in design discussions
- Transitioning from operations to architecture roles
- Leading secure cloud migration projects
- Presenting layered defence strategies to executives
- Negotiating higher compensation based on proven mastery
- Lifetime access ensures you can revisit preparation tools anytime
- Designing layered defence strategies from ground up
- Aligning security zones with OSI layer boundaries
- Zero Trust architecture mapped to OSI layers
- Microsegmentation planning using layer-specific policies
- Encrypting data across layers: TLS, MACsec, IPsec combinations
- Hardening layered service dependencies in cloud apps
- Designing secure API gateways with layered validation
- Creating secure default configurations for cloud templates
- Threat modeling using STRIDE per OSI layer
- Drawing data flow diagrams with layer annotations
- Using the OSI Model in security architecture reviews
- Documenting layer-specific controls for compliance audits
- Integrating layer checks into CI/CD pipelines
- Defining secure handoffs between development and operations
- Architecture patterns for regulated industries using OSI framework
Module 12: Offensive Security and Penetration Testing by Layer - Reconnaissance techniques by OSI layer
- Layer 1: Physical access and signal interception
- Layer 2: ARP spoofing and MAC address impersonation
- Layer 3: IP spoofing and routing manipulation
- Layer 4: Port scanning and service fingerprinting
- Layer 5: Session hijacking and fixation attacks
- Layer 6: Data encoding and format exploits
- Layer 7: Web and API exploitation frameworks
- Using Burp Suite for application-layer attacks
- Automating layer-specific payloads with Metasploit
- Combining layers for advanced evasion
- Pass-the-hash in the context of session layer abuse
- Tunneling C2 traffic through allowed protocols
- Detecting and blocking offensive layer transitions
- Using red team findings to harden each layer
Module 13: Defence-in-Depth Tooling and Automation - Selecting tools by OSI layer coverage
- NIDS/NIPS configuration by layer-specific rules
- Firewall rule management across layers
- EDR/XDR telemetry analysis with layer context
- Cloud security posture management (CSPM) tools
- Network detection and response (NDR) platforms
- Automating response actions by layer
- Playbook development for layered incidents
- SOAR integration with OSI-based triggers
- Automated network segmentation updates
- Policy-as-code for layered security enforcement
- Using Terraform to codify layer-specific controls
- Enforcing secure defaults through infrastructure automation
- Integrating layer checks into DevSecOps pipelines
- Building layered compliance dashboards
Module 14: Incident Response and Forensics by OSI Layer - Responding to attacks with layer-specific containment
- Isolating compromised hosts at Layer 2 vs Layer 3
- Blocking malicious traffic at appropriate layer
- Collecting evidence without disrupting operations
- Forensic analysis of switch and router logs
- Analysing firewall and proxy logs for multi-stage attacks
- Reconstructing attack timelines using layered logs
- Determining attack entry and persistence layers
- Identifying exfiltration channels by protocol layer
- Memory forensics and process-to-port mapping
- Disk imaging with network context preservation
- Cloud logging: VPC Flow Logs, CloudTrail, and Audit Logs
- Using packet captures in legal and regulatory reporting
- Preserving chain of custody across digital artifacts
- Reporting breach scope using OSI-based impact assessment
Module 15: Compliance, Risk, and Governance Through the OSI Lens - Mapping PCI DSS controls to OSI layers
- HIPAA network requirements and Layer 3 segmentation
- GDPR data flow mapping and encryption responsibilities
- ISO/IEC 27001 controls by network layer
- NIST SP 800-53 network protection controls
- Demonstrating layered controls to auditors
- Risk assessment using layer-specific threat likelihood
- Calculating impact by potential layer compromise
- Documenting layered security in System Security Plans
- Third-party risk assessment using OSI framework
- Vendor security questionnaires with layer-specific questions
- Building OSI-aware security policies and standards
- Executive reporting on layered defence maturity
- Board-level communication using simplified OSI mapping
- Aligning security investment with highest-risk layers
Module 16: Certification Preparation and Career Advancement - Reviewing all modules for mastery retention
- Practice assessments with detailed feedback
- Layer-focused scenario-based challenges
- Mapping your experience to OSI-based competencies
- Updating your resume with OSI-based achievements
- LinkedIn profile optimisation for security roles
- Using the Certificate of Completion in job applications
- Preparing for technical interviews with OSI examples
- Speaking the language of security architecture with confidence
- Demonstrating layered thinking in design discussions
- Transitioning from operations to architecture roles
- Leading secure cloud migration projects
- Presenting layered defence strategies to executives
- Negotiating higher compensation based on proven mastery
- Lifetime access ensures you can revisit preparation tools anytime
- Selecting tools by OSI layer coverage
- NIDS/NIPS configuration by layer-specific rules
- Firewall rule management across layers
- EDR/XDR telemetry analysis with layer context
- Cloud security posture management (CSPM) tools
- Network detection and response (NDR) platforms
- Automating response actions by layer
- Playbook development for layered incidents
- SOAR integration with OSI-based triggers
- Automated network segmentation updates
- Policy-as-code for layered security enforcement
- Using Terraform to codify layer-specific controls
- Enforcing secure defaults through infrastructure automation
- Integrating layer checks into DevSecOps pipelines
- Building layered compliance dashboards
Module 14: Incident Response and Forensics by OSI Layer - Responding to attacks with layer-specific containment
- Isolating compromised hosts at Layer 2 vs Layer 3
- Blocking malicious traffic at appropriate layer
- Collecting evidence without disrupting operations
- Forensic analysis of switch and router logs
- Analysing firewall and proxy logs for multi-stage attacks
- Reconstructing attack timelines using layered logs
- Determining attack entry and persistence layers
- Identifying exfiltration channels by protocol layer
- Memory forensics and process-to-port mapping
- Disk imaging with network context preservation
- Cloud logging: VPC Flow Logs, CloudTrail, and Audit Logs
- Using packet captures in legal and regulatory reporting
- Preserving chain of custody across digital artifacts
- Reporting breach scope using OSI-based impact assessment
Module 15: Compliance, Risk, and Governance Through the OSI Lens - Mapping PCI DSS controls to OSI layers
- HIPAA network requirements and Layer 3 segmentation
- GDPR data flow mapping and encryption responsibilities
- ISO/IEC 27001 controls by network layer
- NIST SP 800-53 network protection controls
- Demonstrating layered controls to auditors
- Risk assessment using layer-specific threat likelihood
- Calculating impact by potential layer compromise
- Documenting layered security in System Security Plans
- Third-party risk assessment using OSI framework
- Vendor security questionnaires with layer-specific questions
- Building OSI-aware security policies and standards
- Executive reporting on layered defence maturity
- Board-level communication using simplified OSI mapping
- Aligning security investment with highest-risk layers
Module 16: Certification Preparation and Career Advancement - Reviewing all modules for mastery retention
- Practice assessments with detailed feedback
- Layer-focused scenario-based challenges
- Mapping your experience to OSI-based competencies
- Updating your resume with OSI-based achievements
- LinkedIn profile optimisation for security roles
- Using the Certificate of Completion in job applications
- Preparing for technical interviews with OSI examples
- Speaking the language of security architecture with confidence
- Demonstrating layered thinking in design discussions
- Transitioning from operations to architecture roles
- Leading secure cloud migration projects
- Presenting layered defence strategies to executives
- Negotiating higher compensation based on proven mastery
- Lifetime access ensures you can revisit preparation tools anytime
- Mapping PCI DSS controls to OSI layers
- HIPAA network requirements and Layer 3 segmentation
- GDPR data flow mapping and encryption responsibilities
- ISO/IEC 27001 controls by network layer
- NIST SP 800-53 network protection controls
- Demonstrating layered controls to auditors
- Risk assessment using layer-specific threat likelihood
- Calculating impact by potential layer compromise
- Documenting layered security in System Security Plans
- Third-party risk assessment using OSI framework
- Vendor security questionnaires with layer-specific questions
- Building OSI-aware security policies and standards
- Executive reporting on layered defence maturity
- Board-level communication using simplified OSI mapping
- Aligning security investment with highest-risk layers