Block keyless relay theft at home

Relay thieves can extend the signal between a key fob inside your home and a car outside. Store the fob—and its spare—in a properly closing Faraday pouch or…

Relay thieves can extend the signal between a key fob inside your home and a car outside. Store the fob—and its spare—in a properly closing Faraday pouch or box, then test that the car stays locked when the protected key is held beside it.

Why relay theft works so quickly at home

Keyless fobs and cars constantly listen for each other at short range. In a relay attack, one thief near your door forwards the fob’s signal to an accomplice by the car, making the car think the key is present. Fobs often sit just inside the door, close enough to reach — silently.

What to do, step by step

1. Store the main fob and the spare in a properly closing Faraday pouch or box, away from doors and windows.
2. Test the pouch: with the fob sealed inside, stand beside the car and confirm it will not unlock or start.
3. Check your car’s manual or settings for an option to turn off keyless entry, and consider using it overnight.
4. Add a visible layer such as a steering-wheel lock, or block the car in where practical.
5. Replace or rotate pouches that no longer close fully — worn folds and clasps are the common failure point.