The Relay Attack, a two-person attack, is when a thief walks up to the victim’s home with a piece of equipment that captures the signal from the key fob and then transmits the signal from a car key fob. "An accomplice waits nearby at the car door, usually with another device, to open the car when the signal is received," the AARP website said. The copied signal can fool the car into starting the ignition.
Spybuster Tip #823: Store your car key fobs in a metal container when not in use.
Your other fobs are at risk too. Learn more here.