A method and system for automatically terminating a logout session for a restricted access system by determining that an authorized user has left the vicinity of the restricted access system. The authorized user preferably carries a wireless transmitter which transmits an authorization signal that is also used for permitting access to the restricted access system. When the authorized user leaves the vicinity of the restricted access system after logging in, the signal is no longer received by a wireless receiver or too weak of a signal, such that an access control system in communication with the wireless receiver automatically causes the restricted access system to initiate a logout action in order to prevent or reduce the chance of an unauthorized user gaining access to the restricted access system. The restricted access system can be a rewards tracking system, such as, but not limited to, a rewards tracking system for a gaming machine or gaming table.