Yeah. Have your screen set to lock out in 30 secs if possible (in the iPhone, this is the default if you set your phone on low battery mode). Also, it's good practice to call your cell phone company, tell them you might be the victim of identity theft, and have a password so that account information cannot be changed by any random person that calls in.
RE: CELL PHONES I never thought of this.. 😥😥😥