The place where a user performs personal authentication includes a room into which entry is authenticated, and an apparatus for use of which authentication input (login and logout) is performed. In such situation, it will take at least a moving time for a user to perform authentication input at a certain location and thereafter to perform authentication input at another apparatus of a different location. Therefore, the present invention provides an authentication-capable apparatus whereby the authentication input by the aforementioned user (the same user) at a different place is inhibited within the aforementioned moving time, thereby preventing “spoofing” by an unauthorized user.