cell phone security
A small computer and specialized software in the SIM are designed to protect your phone services from unauthorized parties, securely store your personal information like your phone contacts and provide other applications like faster Web searching and ringtone access. Whether your SIM has these applications or not depends on your GSM operator, however.
Trend Micro has analyzed a piece of mobile malware known as "Sexy Space," which is a variant of another piece of mobile malware called Sexy View, which targets devices running the Symbian S60 OS.
Presenting at the show, Charlie Miller, a well-known Mac hacker who works for Baltimore-based Independent Security Evaluators, released only minor details about the flaw, which reportedly can be used by an attacker to take control of the device to perform actions such as eavesdropping on conversations or tracking down a user's location through the phone's GPS capability.