1.Context and Threat Landscape of Software-Defined Vehicles --Brief introduction to Software-Defined Vehicles (SDVs), their evolution, and the architectural transformations that have enabled them. --Future of SDVs and Ecosystem --Cyber Attack Surface, Safety and Public Trust 2. Secure SDV Cybersecurity Reference Architecture --Proposed Layered Architecture for Protecting the Vehicle Neural Network 3. Zero Trust, OTA Security, and AI Model Protection --Identity Verification, Secure OTA updates, AI Model protection, Cloud based security monitoring 4. Standards, Compliance, and Operationalization --ISO 21434 Framework, UNECE R155 Regulatory Requirements, other Cybersecurity frameworks