CONTROL DEVICE, CONTROL METHOD, AND NON-TRANSITORYCOMPUTER-READABLE STORAGE MEDIUM

The control device includes an information processing device and a communication device. The information processing device extracts a group of users from the plurality of users based on passenger information of the plurality of users, the group of users being a group of users whose relationship with each other is a predetermined personal relationship, transmits to information terminal devices carried by the users belonging to the group, via the communication device, first display information indicating a current position of the shared vehicle, and transmits, in a case where a protection target user for whom a predetermined privacy protection requirement is satisfied is included in the group, second display information that is processed to protect privacy of the protection target user, to an information terminal device carried by a user not belonging to the group, via the communication device.