Abstract: An information processing apparatus has a controller configured to identify a driver of a vehicle on the basis of at least one of the results of first authentication based on a first part of the living body of a user and second authentication based on a user device. The controller gives higher priority to the result of first authentication than the result of second authentication in the processing of identifying the driver of the vehicle. The user device may include a first communication terminal capable of functioning as an electronic key of the vehicle and a second communication terminal incapable of functioning as an electronic key of the vehicle. The controller gives higher priority to the result of authentication of the first communication terminal than the result of authentication of the second communication terminal.