Keyless entry to vehicles was first debuted in the 1982 Renault Fuego, but it took until 2019 to finally build a key fob that was resistant to signal boosting.
In the early days, the signal from the key fob needed to be aimed specifically at the receiver, and if you owned one of these early cars then you know how hard it was to make this happen. Unfortunately, another downside was that this signal could be blocked by stronger signals, thus spawning a new way for thieves to prevent owners from getting into their cars and then breaking in themselves.
As manufacturers began to adapt to this, the next big step was in 1998 by Mercedes Benz and added: "keyless go" or the modern keyless entry system. This system has remained largely adopted by all car manufacturers and also unchanged. Allowing thieves to perfect signal boosting of key fobs, where they can now take your key fob's signal and use it on your car.
In 2014, car manufacturers began to experiment with testing more stringent measures on key fobs, but these new versions are only starting to be adopted on consumer models.
The newest car models of Audi A6, BMW 1 Series, 8 Series, and X6, Volkswagen Passat, and Ford Puma were among the ones tested by Thatcham Research for increased keyless security. The new keyfobs have a "sleep mode" that activates when the fob is at rest for an extended period of time, and then functionality is restored when it is picked up. This sleep mode shortens the length of the signal to prevent signal boosting.
We hope that this becomes adopted by all car manufacturers in the future, but unfortunately, this will not help you if you have an older car.
We recommend keeping your key fob in a Faraday Sleeve at night or during the day when you are at home, as this will prevent thieves from boosting your key fobs signal.
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