Why Wrapping Your Car Keys in Aluminum Foil Might Save You Thousands

Leave keys near entryways or in purses by the door
Unfortunately, all of these habits make it easier for someone to walk up to your house and hijack your car’s signal—without ever stepping foot inside.

Real Stories, Real Losses
Just last year, a 67-year-old couple in Phoenix woke up to find their new SUV missing from their driveway. Police later told them it was stolen using a signal amplifier—something you can buy online for $40.

“We didn’t hear a thing,” the husband said. “It’s like they vanished with it in thin air.”

Their insurance covered most of the loss, but they were still left shaken—and wary of their own technology.

The Auto Industry Is Catching On
Automakers know this is a problem. Some are developing “sleep mode” key fobs that turn off after a period of inactivity, while others are incorporating ultra-low signal transmissions that are harder to clone.

But until those features become standard, it’s up to you to protect your vehicle.

And no, you don’t need to be tech-savvy. Just a bit cautious—and maybe a roll of foil.

5 Easy Ways to Block Key Fob Theft
Here’s what you can do today:

Wrap your key fob in aluminum foil when not in use.
Buy a Faraday bag and store your keys in it overnight or in public places.
Don’t leave your keys near windows or doors—signals can travel through walls.
Use a steering wheel lock as an added deterrent.
Park in well-lit or secured areas, especially if you don’t have a garage.
Better Safe Than Sorry
Yes, it feels strange that something as basic as foil could protect something as expensive as a car. But in today’s world, where hackers can operate from the sidewalk outside your home, every layer of protection helps. So if you drive a modern vehicle—even if it’s just for Sunday grocery trips or the occasional road trip with the grandkids—this small step can make a big difference.