CAN Bus Intrusion Detection: Autonomous Vehicle Security

Autonomous and connected cars route safety-critical commands over a shared CAN bus that was never designed with sender authentication — any electrically connected ECU can transmit any message ID. This simulator renders the vehicle's zone architecture in 3D: an Engine ECU, Brakes and Steering ECUs, and an Infotainment/telematics ECU (the realistic entry point for a malicious OTA update or spoofed V2X message) all feeding a central gateway. Start the attack and the Infotainment node begins spoofing the Brakes ECU's arbitration ID; watch whether the gateway's domain-isolation whitelist and its timing-based intrusion detector catch the forgery, or whether a well-tuned injection rate slips through. Live counters track legitimate deliveries, blocked intrusions, false positives from an overly strict IDS, and any malicious frames that evaded both defenses.