This article presents AWS reference architectures for securing connected vehicle platforms, focusing on certificate lifecycle management, encryption, and monitoring of vehicle-to-cloud communication.

• Manage operational certificates for vehicle ECUs using AWS Private CA and just-in-time registration
• Provision attestation certificates on factory floor, then operational certificates via certificate broker
• Use AWS IoT Device Defender audit checks to monitor certificates, policies, and device identities
• Encrypt remote commands and telemetry data using AWS KMS with signing and encryption
• Implement anomaly detection via AWS IoT Device Defender to identify compromised devices
• Automate remediation actions using EventBridge and Step Functions workflows
• Aggregate security findings across services using AWS Security Hub

These reference architectures provide a foundation for automotive manufacturers to secure connected vehicle platforms through identity management, encryption, and behavioral monitoring on AWS.