You may be familiar with vehicles with keyless entry - maybe you or somebody you know drives one, and whilst this fantastic new technology makes drivers lives easier, it has also created an opportunity for thieves.

Key hacking - or car hacking as it is sometimes referred to - is gaining access to a car when the key is nearby, without having the press the button on the fob.

When the key fob is close to the car, it is emitting short-range signals which tell the car to unlock. Car thieves have found ways to scan for these signals and hack them in order to break into cars.

Key hacking can also be known as relay theft. This is because the thieves use car key relay boxes near your home to receive signals coming from your car key fob. This all happens whilst your keys are inside your home, and the signal passes through windows or walls.

Another box near the vehicle is then used to trick the car into thinking the key is nearby and to unlock the doors.

How to prevent car key hacking

Unfortunately, these types of theft have become more and more common. But there are preventative measures you can take to prevent your vehicles from being stolen.

  • Make sure your vehicle’s software has been updated regularly
  • Using a steering lock will likely put thieves off attempting to break into your car using this method.
  • Key fob blockers can also be used

What is a key fob blocker?

Key wallets or bags lined with metal are used as car key fob blockers, and you may have heard them referred to as Faraday bags.

Prices start from around £5, and you may wish to consider purchasing one in order to keep your car safe. Make sure you test the bag yourself once you have bought it.

Always put the keys in the bag as soon as you have locked it, and remember to get one for your spare key in the house too.

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