The Security Mentor

One of the problems it fixes could become a biggy. There's a Bluetooth security bug in the iPhone which could let anyone within Bluetooth range take over your phone. The reason to worry is that the details of how to do it are known, so it's just a matter of bad guys deciding to do it. They'd rather attack millions of computers at a time than take over phones one at a time, but I'm sure they've thought of writing a worm that would spread from iPhone to iPhone.