Method of detecting unauthorized use of a communication unit in a secure communication system

摘要

A method for detecting unauthorized use of a communication unit in a secure wireless communication system includes receiving, by a central controller, a service request from the communication unit via the wireless communication system. The central controller determines whether the service request is requesting an unencrypted communication resource or an encrypted communication resource. When the service request is requesting an unencrypted communication resource, the central controller determines whether the service request substantially matches a historical utilization pattern. When the service request does not substantially match the historical utilization pattern, the central controller indicates that the communication unit is a potential unauthorized communication unit.