What are the key cybersecurity concerns for vehicle networks?

Vehicle network security concerns include: Unauthorized access through diagnostic ports or aftermarket devices, remote attacks via connected interfaces (telematics, infotainment), CAN bus message spoofing/injection, firmware tampering, privacy breaches from vehicle data, and supply chain attacks through compromised components. Countermeasures include secure boot, authenticated updates, message authentication (SecOC), network segmentation, intrusion detection, hardware security modules, and security monitoring. Regulations like UNECE WP.29 mandate cybersecurity management systems for vehicle homologation.