a security module implemented in the SIM that provides a trusted environment for using WAP related applications and services on a mobile device via a WAP gateway.
						                            Source(s):
						                            
								                            
                                                                
                                                                    NISTIR 7250
                                                                
                                                                                                                                                                                                
									                            
                                                                
                                                                    NISTIR 7387
                                                                
                                                                										                             under WAP Identity Module