ALBUQUERQUE, N.M. (WHAT THE TECH?) — You may have seen social media posts about thieves breaking into cars by copying key fobs. It’s a real problem. It’s called a relay attack and here’s how it works.

You park your car, press the lock button on your key fob, and confidently walk away. You assume your vehicle is secure. But what if thieves could bypass your car's security system without even ...