Patent ID: 8739259

Claim:
A client computer system comprising: a processor configured to control operations of the client computer system; a memory; a client security module program in the memory to authenticate the client computer system to a server computer system; and a client service module program in the memory to provide a service related to the server computer system, wherein: the client computer system is a wireless mobile communication device having a mobile device number (MDN); execution of the client security module program by the processor configures the client computer system to implement functions, including functions to: send to the server computer system an identification (ID) communication that contains information identifying the client computer system including the MDN; in response to the ID communication, receive a test security code sent by the server computer system; and in response to receiving the test security code and without user input after the test security code is received, send to the server computer system a verification communication that contains information identifying the client computer system including the MDN and the test security code; in response to sending the verification communication, receive an authorization security code from the server computer system; and cause the authorization security code to be stored in the memory; and execution of the client service module program by the processor further configures the client computer system to implement further functions, including functions to: send a service request communication to the server computer system requesting a service from the server computer system, wherein the client service request communication contains information identifying the client computer system including the MDN, information identifying the service related to the server computer system, and the authorization security code.