The Reason Drivers Are Wrapping Their Car Keys in Aluminum Foil
Summary
Drivers are increasingly wrapping their car keys in aluminum foil to thwart high-tech thieves targeting keyless entry systems. Modern vehicles use radio frequency signals to communicate with key fobs, making them vulnerable to relay attacks, where thieves intercept and amplify these signals to unlock and start the car remotely. Aluminum foil acts as a simple Faraday cage, blocking electromagnetic signals and preventing unauthorized access. This low-cost method is effective across various car models and doesn't require specialized equipment. For enhanced security, it's recommended to fully enclose the key fob, test its functionality, and store it away from exterior walls.
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