SERVER, SOFTWARE UPDATE SYSTEM, SOFTWARE UPDATE METHOD, AND NON-TRANSITORY STORAGE MEDIUM

A server includes one or more processors configured to: make a request of a first terminal and a second terminal for a reply as to whether to approve a process related to update of software for a control device mounted on a vehicle, the first terminal being a terminal mounted on the vehicle, and the second terminal being a terminal to be carried by a user of the vehicle; and when receiving both the reply from the first terminal and the reply from the second terminal as a response to the request, invalidate the reply from the second terminal and validate the reply from the first terminal.