Description

This curriculum spans the equivalent of a multi-workshop technical engagement with an automotive OEM’s cybersecurity team, covering threat modeling, secure architecture design, and lifecycle management of control units across development, deployment, and decommissioning phases.

Module 1: Threat Modeling and Risk Assessment in Automotive Systems

Conducting STRIDE-based threat analysis on vehicle control units to identify spoofing, tampering, and information disclosure risks across CAN, LIN, and Ethernet interfaces.
Selecting appropriate attack surface boundaries for domain controllers based on OEM-supplied component specifications and third-party supplier integration points.
Integrating ISO/SAE 21434 risk assessment workflows into vehicle lifecycle phases, including determining exploitability and impact scores for control unit vulnerabilities.
Documenting threat scenarios involving compromised ECUs influencing safety-critical systems such as braking or steering, and defining mitigations in design specifications.
Coordinating with hardware teams to assess physical access risks to control units, including diagnostic port exposure and aftermarket device connectivity.
Updating threat models in response to field incident data, such as reverse-engineered firmware from stolen vehicles or compromised telematics units.

Module 2: Secure Control Unit Architecture Design

Specifying hardware security modules (HSMs) or secure elements for integration into microcontrollers to support secure boot and cryptographic operations.
Partitioning control unit software into trusted and untrusted execution environments using ARM TrustZone or similar isolation technologies.
Designing secure update mechanisms for control unit firmware that prevent rollback attacks through monotonic counters and version validation.
Implementing secure inter-ECU communication patterns using authenticated message frames with session keys derived from pre-shared certificates.
Evaluating trade-offs between real-time performance requirements and cryptographic processing overhead on resource-constrained microcontrollers.
Selecting memory protection units (MPUs) and configuring access policies to prevent unauthorized code execution in control unit RAM and flash regions.

Module 3: Secure Communication Protocols for In-Vehicle Networks

Deploying Automotive Ethernet with MACsec to protect high-bandwidth communication between domain controllers and ADAS systems.
Implementing CAN FD with payload encryption and message authentication using lightweight cryptographic algorithms such as AES-CBC-MAC.
Configuring secure gateways to enforce policy-based routing and payload inspection between vehicle domains (e.g., infotainment to powertrain).
Integrating TLS 1.3 for external communication channels from control units to cloud services, balancing certificate management complexity with security.
Managing cryptographic key distribution across thousands of control units using centralized key management systems with secure provisioning interfaces.
Handling legacy ECU integration by deploying proxy-based security translators that add cryptographic protection to unsecured CAN messages.

Module 4: Intrusion Detection and Response in Control Units

Developing behavioral baselines for control unit message transmission rates and payload patterns to detect CAN bus flooding or impersonation attacks.
Deploying lightweight IDS agents on microcontrollers with constrained memory, using signature and anomaly detection with minimal CPU impact.
Configuring event logging mechanisms that capture suspicious messages without exceeding non-volatile memory endurance limits.
Integrating IDS alerts with centralized vehicle security operations platforms for correlation across multiple control units and vehicle fleets.
Defining automated response actions such as message filtering, bus isolation, or safe state transitions upon confirmed intrusion detection.
Validating IDS rule sets against false positive rates during vehicle testing, especially under edge-case driving conditions like regenerative braking.

Module 5: Over-the-Air (OTA) Update Security for Control Units

Designing dual-bank firmware storage in control units to enable atomic updates with guaranteed rollback capability upon verification failure.
Implementing signature validation of OTA payloads using public key infrastructure with root-of-trust anchored in hardware.
Enforcing update authorization policies that require multi-factor approval for safety-critical control units like braking or steering.
Managing update scheduling to avoid conflicts with vehicle operation, such as preventing updates during high-voltage battery charging.
Monitoring update success rates across vehicle fleets and triggering diagnostics for units that fail cryptographic verification.
Securing the OTA backend infrastructure with zero-trust access controls, including segmented networks and hardware security modules for signing keys.

Module 6: Supply Chain and Third-Party Component Security

Conducting security assessments of supplier-provided control unit firmware using binary analysis tools to detect backdoors or weak cryptographic implementations.
Enforcing software bill of materials (SBOM) requirements for all third-party libraries used in control unit applications.
Validating secure boot chain implementation in supplier hardware against OEM security specifications before integration.
Managing cryptographic key lifecycle for supplier-managed components, including key rotation and revocation procedures.
Establishing contractual obligations for vulnerability disclosure and patch delivery timelines from Tier 1 and Tier 2 suppliers.
Performing penetration testing on pre-production control units from suppliers to evaluate resistance to side-channel and fault injection attacks.

Module 7: Compliance, Auditing, and Incident Response

Aligning control unit security configurations with UN R155 and R156 regulatory requirements for CSMS and software updates.
Generating audit trails for control unit access, configuration changes, and security events that meet forensic retention standards.
Conducting red team exercises on vehicle prototypes to evaluate end-to-end resilience of control unit protections.
Responding to field-reported vulnerabilities by coordinating patch development, regression testing, and fleet-wide deployment timelines.
Integrating control unit logs into SIEM platforms for correlation with enterprise security events during cyber investigations.
Preparing technical documentation for regulatory audits, including evidence of secure development lifecycle adherence for control unit software.

Module 8: Long-Term Security Maintenance and Decommissioning

Establishing end-of-life policies for control units that include secure data erasure and cryptographic key destruction procedures.
Maintaining security patch support for control units across 10+ year vehicle lifecycles despite component obsolescence.
Monitoring for newly disclosed vulnerabilities in legacy microcontroller families used in existing control unit designs.
Updating threat models and security configurations in response to evolving attack techniques, such as AI-assisted reverse engineering.
Managing firmware preservation and emulation environments to support security analysis of discontinued control unit models.
Coordinating with recycling and salvage operations to prevent unauthorized access to control units removed from decommissioned vehicles.