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Modern cars increasingly have so-called keyless systems. These promise more comfort, but represent a major security gap.
The radio technology used in these systems makes it easier for car thieves to gain access to vehicles by simply extending the key signal.
As soon as the car detects a radio signal from the key, the vehicle can be unlocked using a button or sensor on the door handle. The key can remain in the jacket pocket. This should only work if you are in close proximity to the car. Resourceful car thieves can easily manipulate this system. For less than 100 euros, the necessary accessories for the self-made radio wave extender are available in specialist shops.
This can amplify the radio signal from the key over several hundred meters so that the car can not only be opened without problems, but can also be started straight away. Car theft without traces. Key cases that block radio waves can help
Ultra-wide-band technology in use
The ADAC, among others, has therefore repeatedly pointed out this security vulnerability. This is probably the reason why the automobile club is now praising the new Golf 8, for which VW is offering a safe alternative to manipulation for the first time in the compact class.
The decisive innovation is the so-called ultra-wide-band technology (UWB), which is already used in Jaguar and Land Rover, i.e. in vehicles of higher classes. The club had not been able to open these vehicles from the upper and luxury class with a self-made radio extension and could not drive them away. However, more than 350 other models from different manufacturers could be tricked – and so easily stolen.
Distance is recognized
With the UWB solution, the car can recognize the actual distance of the signal generator from the vehicle. It is only unlocked if the key is physically in the immediate vicinity. If the radio signal is only extended by a key hanging in the hall cloakroom, for example, the vehicle remains locked.
The problem remains with most current models with the old technology, which is why the ADAC car owner calls for increased vigilance.
If you have a vehicle with a keyless system, you should play it safe and keep the radio key in a special key safe, or alternatively wrap it in aluminum foil to disrupt the radio signal. The ADAC advises members to be more vigilant when storing the key. The club sees automakers as being obliged to systematically secure all vehicle electronics, as has long been standard in other IT areas. For owners of affected vehicles, there should also be quick remedial measures, the ADAC (CM / SP-X)
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