US Patent 11366885 Vehicle security system and vehicle security method

A vehicle security system includes a terminal device, a server device, and a vehicle. The terminal device includes a token acquisition unit and a terminal communication unit configured to transmit the token, terminal identification information, and vehicle identification information to the server device. The server device includes a server communication unit, a server determination unit configured to determine that authentication has succeeded, and a server storage unit configured to store the terminal identification information and the vehicle identification information received from an authenticated terminal device in association. The server communication unit transmits the token and the terminal identification information to the vehicle of the vehicle identification information. The vehicle includes a vehicle communication unit, a vehicle determination unit configured to determine that authentication has succeeded, and a vehicle storage unit configured to store the received terminal identification information in association with the token of authentication success.