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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 * U& L" [' ?0 q
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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.. e, y6 m! N8 i( s/ G3 K- H
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。
! f: z1 n! v8 P8 u" E% e0 W4 @: @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.
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What is Relay Theft?
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& L# S/ \: M! d; L$ F! B- cRelay 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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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.
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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.7 n1 v1 m) W# d& l
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