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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑
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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.( K( j; a6 I- O& B+ t9 I7 p7 W \
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。# o! x4 A4 R% d: K
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?: |2 I! f4 g' v
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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.$ T# z5 p$ I: P$ r) z* ?
+ J3 Y `/ ~4 _- ]! pOperating 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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0 p% e9 Y; r: S9 o mThe 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., ]1 M; E) ^* H
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