Keyless car theft is an increasing threat as modern vehicles use electronic key fobs that constantly transmit low-level radio signals, making them vulnerable to relay attacks where thieves capture and replicate the signal to unlock and start the car, often within a minute.
The good news is that simple, low-tech solutions can significantly reduce risk: wrapping your key fob in aluminum foil creates a makeshift Faraday cage that blocks the signal, while purpose-made Faraday bags provide a stylish, more effective alternative for under \$20.
Seniors are particularly at risk because they often leave keyless vehicles in driveways, keep keys near doors, and drive newer cars, making signal amplification attacks easier. Real cases highlight the danger, such as a Phoenix couple who lost their SUV to a signal amplifier, illustrating how thieves can operate silently from outside the home. Automakers are working on “sleep mode” fobs and ultra-low signal transmissions to address the problem, but until these become standard, individuals can protect their vehicles through precautions: store keys in foil or a Faraday bag, keep them away from windows and doors, use steering wheel locks, and park in well-lit or secured areas. Even basic measures like foil wrapping can prevent high-tech theft, proving that a small effort can safeguard your expensive vehicle in today’s digital world.