Now Playing: 10-12-12 Marketplace Tech Report

There's a new online scam that might freeze you at your keyboard: Software that for all intents and purposes, threatens to shoot your computer if you don't pay. The bad guys infect your system and hold it for ransom by locking up your hard drive with encryption. How to protect against it? A familiar line: backup your files! But let's be honest: how many of us consistently back up our files, really?