A system and method for providing cyber defense for electronic identification, vehicles, ancillary vehicle platforms, and telematics platforms using blockchain. The vehicle may be a ground-based vehicle, air-based vehicle, roadable aircraft vehicle, sea-based vehicle, autonomous vehicle, or unmanned aerial vehicle. Wherein ancillary vehicle platforms may include, but not limited to, aviation platforms, urban air mobility platforms (UAM), and unmanned aircraft systems (UAS). The system and method include determining whether a user is an authorized operator of a vehicle, the vehicle including an external display of a digital license tag. If the user is determined to be an unauthorized operator of the vehicle, the system activates a primary kill switch which prevents the activation of the vehicle's digital license tag. If the user is determined to be an authorized operator of the vehicle, the system activates the vehicle's digital license tag and initiates continuous cyber security monitoring of the vehicle while the vehicle is activated. The system obtains data from an Identity and Access Management Enterprise (“IAME”) platform, ancillary vehicle platforms and vehicle telematics platforms during operation of the vehicle until a cyber-attack is detected during the cyber security monitoring. The system activates a secondary kill switch when a cyber-attack is detected. The secondary kill switch disables operation of the vehicle.