I was talking tonight with a friend of mine who is in the military and has also worked for one of the popular cell phone companies. He was telling me about when they would work with the authorities that they would track and pinpoint people by their cell phones, he also told me about how they would get into someones cellphone messaging service and copy over their contents. The next time their passcode doesn't work they have to call and have it reset. The point is he got to telling me about how you can call up a server that handles all the processes of leaving a message and enter a 6 digit passcode, thus allowing you to do as you wish.
Anyone ever heard of anyone doing anything like this?