DRIVERS have been warned their keyless car could disappear within minutes with thieves able to break in and drive away using special tech. "Car thieves operate in twos, with one member standing next to your home to receive the signal from the key fob while their colleague waits next to the car," Carse said. "They magnify and reproduce this signal and fool the car into believing the key is there." "The whole theft takes less than five minutes and may happen while the owner sleeps," he added. He does, however, have a solution in the form of a signal-blocking Faraday bag or even a simple metal container to store key fobs.