This innovative text provides comprehensive coverage of all of the various security issues that face the mobile communications industry. Discussion includes hacking and infecting with viruses; techniques used to provide access control, authentication, and authorization; the security of SIM-like cards; standards implemented by the GSM, third generation, WLAN, and ad-hoc networks; the security of wireless sensor networks, satellite services, mobile e-services, and inter-system roaming and interconnecting systems; and the applications using IP mobility. Mobile communications scientists, students, engineers, and telecom service providers, will find this to be an invaluable resource.