Information processing device, information processing method, and non-transitory computer-readable storage medium

An information processing method executed by an information processing device relating to a predetermined service provided to a user by allowing a worker to temporarily access a vehicle cabin including a trunk of a vehicle used by the user, the information processing method comprising:

• determining, by the information processing device, whether the worker relating to a service provider of the service has unlocked a door of the vehicle using key information for unlocking the door, the door accessing the vehicle cabin of the vehicle;
• determining, by the information processing device, whether a predetermined time has elapsed from unlocking of the door in a case where the door has been unlocked;
• and
• notifying, by the information processing device, the user of a warning or activating an alarm device of the vehicle in a case where a state in which the door of the vehicle is not locked continues after the predetermined time has elapsed.