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The Hidden Problem: Signal Relay Theft
Most people don’t realize their car key is always “talking.”
Even when sitting on a table, inside your pocket, or hanging by the door, your key fob continues to emit a signal.
What Is Relay Theft?
Relay theft is a method used by car thieves where:
- One device captures the signal from your key fob
- Another device relays it to your car
- The car believes the key is present
- Doors unlock and the engine starts
This can happen without breaking windows, without noise, and without physical contact.
It’s fast, quiet, and difficult to detect.
Why Aluminum Foil Enters the Picture
Aluminum foil isn’t magic—but it is conductive.
When wrapped properly, aluminum foil can:
- Block radio frequency signals
- Act as a simple Faraday cage
- Prevent signals from being transmitted or received
By wrapping your car keys in aluminum foil, you may temporarily block the signal, making it harder for thieves to intercept it.
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