Keep Track of Your Device
Don't want sticky fingers to come between your smartphone and your bank account? Your first line of defense is treat your smartphone as you would a wallet. When you're in public, don't store your smartphone in the exterior pocket of a bag or purse where it can easily get snatched. Don't set it on a tabletop when you dine or plunk it down on the bar when you belly up. And, if you're walking down a busy sidewalk, don't hold it loosely in your hand where someone could just come up and grab it [source: Rose].
You can help ensure that a missing smartphone is an inconvenience instead of a crisis by making a preemptive move. If you have an iPhone, install the Find My iPhone app, which can locate lost or stolen devices via GPS and clean out your personal information -- learn more about that part of the equation on the next page. If you have an Android-based smartphone, apps like WaveSecure offer similar services.