Imagine walking out to your driveway, only to discover that your car has been stolen without anyone breaking a window or even touching your door lock. 😳 It sounds unbelievable, but some modern vehicles with keyless entry systems can be vulnerable to a technique known as a relay attack. Thieves may use electronic devices to capture and extend the signal between a car and its key fob, potentially tricking the vehicle into unlocking or starting even when the key is inside your home.

So, where does the tinfoil come in? 🧐 Many key fobs continuously transmit or respond to radio signals, depending on the model. Wrapping a key in aluminum foil can sometimes help block those signals, acting as a basic protective barrier. However, it isn’t always reliable, especially if the wrapping has gaps or doesn’t fully shield the key. A purpose-made Faraday pouch or signal-blocking box is generally a more practical option when properly tested.

There are other simple ways to reduce the risk, too. Keep your keys away from doors and windows, check whether your vehicle offers a feature to disable keyless entry, and consider using a steering-wheel lock as an additional deterrent. You can also check your vehicle manufacturer’s recommendations for protecting your particular keyless system. 🚗🔐

But is tinfoil really enough to protect your car? It may help in some situations, but it shouldn’t be treated as a guaranteed solution. Also, without a specific police department or official advisory to reference, the headline claiming that police are urging all drivers to do this cannot be independently confirmed. 💬 Would you wrap your keys in tinfoil, or would you choose a dedicated signal-blocking pouch? Share your thoughts below! 👇