METHOD FOR PREVENTING FRAUD OR MISUSE WHEN USING A SPECIFIC SERVICE OF A PUBLIC LAND MOBILE NETWORK BY A USER EQUIPMENT, SUBSCRIBER IDENTITY MODULE AND APPLICATION PROGRAM

摘要

A method for preventing fraud or misuse when a User Equipment uses a service of a public land mobile network. The User Equipment includes a Subscriber Identity Module, The Subscriber Identity Module includes address information used for the service of the public land mobile network. The Subscriber Identity Module includes an application program. The application program includes reference address information. The method includes: determining, by the application program of the Subscriber Identity Module of the User Equipment, that the address information does not correspond to the reference address information; and in response to the determining: blocking, by the application program, the service for the User Equipment and sending an error message to the public land mobile network; or invoking, by the application program, the service for the User Equipment using the reference address information.