What if thieves could bypass your car's security system without even triggering the alarm? It's a growing concern known as "relay attack" or key fob cloning.

You may have seen social media posts about thieves breaking into cars by copying key fobs. It's a real problem.

Thieves can bypass security systems by cloning key fob signals, but using a Faraday pouch or removing the battery from the ...

KRON4's Dan Kerman reports. <a href=" ...