The car sniffs the unlock-me signal that’s close by, and it obligingly unlocks the door. The other thief stands near the car with his relay box, which receives the signal from the relay box near the property. One of the men stands near the victim’s property, waving the device until he gets a signal from a key fob inside the house or garage. West Midlands Police note that the devices are capable of receiving signals through walls, doors and windows, but not metal. In the CCTV footage above, two men pull up outside the victim’s house. The most recent case is this one in the West Midlands, UK. We’ve seen plenty of them over recent years in this, the age of the keyless fob and the relay boxes and signal boosters that steal their signals. The video depicts a so-called relay attack. Why does this matter? Because police in the UK posted a surveillance video on Sunday, showing thieves mysteriously opening and getting into a Mercedes in short order, without a key.Īctually, it’s not all that mysterious. If you answered “yes” to both those questions, congratulations! You might not have to stand outside in your slippers, sobbing over a sadly empty parking spot! “Might” because, well, researchers aren’t entirely sure how much metal shielding you need to create a Faraday cage to block key fobs’ “unlock me/start me up!” radio signals. Do you own a Mercedes or other fancy car that starts with a keyless fob – and which you’d rather not see thieves drive off in?
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