Patent ID: 11924726
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
Field: Digital communication (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 8:
9. A non-transitory storage medium storing a program for causing a computer of an in-vehicle control device, installed on a vehicle and performing communication with at least an information processing device external to the vehicle, to execute:
receiving a communication frame;
determining whether there is an unauthorized intrusion from outside the in-vehicle control device based on the communication frame and a first rule;
in response to determining that there is the unauthorized intrusion, executing intrusion prevention processing by isolating the communication frame;
notifying the information processing device of the first rule and equipment information of the vehicle;
acquiring an application program and a second rule that has been updated based on the notified first rule and the equipment information from the information processing device; and
updating the first rule to the updated second rule.