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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 $ h( p; d& Z, D( e: M$ ?
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双向信号放大器, 放大汽车和钥匙的信号, 让车以为钥匙在车边.$ ~$ Y, m% I; `! y
我现在是用faraday case钥匙包装钥匙, 回家把车钥匙扔那种铁皮的饼干盒里。
/ V$ U; P8 f& @* V6 g我见过最搞笑的是买了宜家一种类似俄罗斯套娃的3层金属盒,把车钥匙放在最里面那个小盒子里, 实测屏蔽信号效果超一流." I9 M1 T$ z4 Q0 d2 T2 E
https://www.thatcham.org/relay-attack/
) Q4 L- Q9 r4 l3 Z: C7 Z! XWhat is Relay Theft?
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Relay theft exploits a vulnerability in passive keyless entry systems, which allow drivers to open and start their cars without removing the keyless fob from their pocket.
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" M& Y; W* S! `Operating in pairs, one criminal holds a device up against the car door, amplifying the signal it broadcasts around the perimeter of the vehicle. Another stands near the front wall or porch of a home, with a device that relays the key’s signal back to his accomplice.: G3 x" ` W) m/ e/ p6 N
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The car is effectively fooled into believing that the owner is within a defined range (usually two metres) and is approaching the car with their key. The door opens, and the signal is relayed a second time, starting the engine. Once started, the engine will not restart without the key present./ i {8 S5 f2 E: T
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