ICYMI: Where do you park your car keys? Preventing relay attacks — via drivingdotca
The intelligent key fob and vehicle are electronically linked to one another, using a low-energy wireless communication signal. When drivers are in close proximity to their car or truck, the signals are validated and the vehicle is unlocked when the driver touches the door handle. Once inside, the ignition can be turned on, again, with no need to handle the physical key or remote.
The technology behind this system is enjoyed for its convenience by millions of drivers around the world every day, but there are two reasons to be careful about where and how you store your car’s key fobs when they’re not in use.As it turns out, there’s a pretty serious reason to be careful about where you store your key fobs: relay attacks.
A relay attack can be carried out in your driveway, perhaps by sniffing out a signal from the key fob inside your front door. In other cases, a thief may follow you into a shopping mall to pick up the key signal from your pocket, transmitting it to an accomplice that’s waiting near your car for the unlock.
In some cases, relay attacks are used to grant car thieves quick access to your interior, where valuable items can quickly be found and removed. In other cases, relay attacks are used to steal the entire vehicle, which may be driven into a shipping container and bound for overseas.Another reason to rethink where you leave your keys is battery drain.
Some owners report mysterious battery problems — for instance, a very short lifespan from remote key fob batteries, or instances of surprise dead batteries in their cars or trucks for no apparent reason, sometimes repeatedly. For instance, parking your vehicle indoors, in a well lit area, near security cameras, or in a high-traffic area may make it less desirable for thieves.can help your key fob keep its signals to itself, which interferes with the signal-amplifying equipment used in relay attacks.
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