Patent ID: 6542729
Filing Date: 2003-04-01
Classification: H04L,H04M,H04W

Abstract:
A method of minimizing fraudulent usage of a mobile telephone, comprising the steps of:accumulating data regarding an authorized user's prior usage of the mobile telephone through a controller in the mobile telephone; accumulating data regarding a current user's usage of the mobile telephone through the controller; analyzing the statistical variation in usage between the authorized user's prior usage and the current user's usage through the controller; and deactivating the mobile telephone if the variation in usage exceeds a predetermined threshold, wherein said step of analyzing the statistical variation in usage includes comparing the identity of other parties to calls initiated or received by the current user with the identity of other parties to calls initiated or received by the authorized user and the comparison of the identity of other parties to calls includes a comparison of the proportion of first time calls previously initiated or received by the authorized user with the proportion of first time calls initiated or received by the current user.