If you wrap your car keys in aluminum foil, there is a better method

It has become fashionable to wrap car keys in aluminum foil to prevent theft. Leave that and use these other, much more practical methods.

We are not very clear to what extent it is necessary wrap car keys in aluminum foil, but many people do it. If this is your case, there are methods that are just as effective, and much more comfortable.

Do you remember when the car key was… well, a key? You put it in a lock, and you opened the door. It is a slower and more cumbersome method than current digital keys, without a doubt, but also much more secure.

The keys to a modern vehicle are actually chips that emit an electromagnetic frequency, which recognizes the digital lock. This way you can open the car from a distance, or when you get closer. But it is also a hackable method.

Wrapping keys in aluminum foil: an alternative

Using a device capable of intercepting the electromagnetic signal emitted by the digital key, theoretically it is possible to hack the lock, and open the car.

In practice, this is unlikely to happen. The key has a limited range of a few metersand if you live on a third or a little distance from the street, no one outside will pick up the signal.

On the other hand, it would be necessary for the thief to know your car, and where you live or work, to be able to get close enough for a while and intercept the signal.

Although it is unlikely to happen, many people have joined the fashion of wrap car keys with aluminum foil.

Aluminum blocks the electromagnetic signal, preventing it from spreading. It is an effective method, but not practical. The aluminum foil is very thin, and a couple of times you use it, it breaks. And using continuous pieces of aluminum foil is an expense. Not to mention how heavy it is to wrap and unwrap every time you leave home or work.

If you use this method, it is much more convenient to buy a package of coffee in the supermarket, and empty it. Most have the inside wrapped in aluminum foil. There you can store the car key, and put it in or take it out quickly. EITHER line a glass with aluminum foiljust as practical.

Another option is to use aluminum boxes. They sell them on Amazon for less than one euro. But you must make sure that they are made of aluminum, and that the key fits…

To wear them on the street, it is best to use a Faraday bag or trap, which is nothing more than a cover lined with material that cancels out electromagnetic waves. they cost less than 10 euros and they also work for mobile phones with NFC, or bank cards.

As you see, If you wrap the car key with aluminum foil, there are much more practical and comfortable methods. They are worth it.