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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 * x" p% G3 S) S
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% |" B% x& }7 O4 t# j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.
8 C& B) a7 N# E* w/ v- x+ i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。
) J' B8 V* s: F1 h/ \! l8 B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. m/ {( M |1 F+ q
https://www.thatcham.org/relay-attack/: K( R- E) P( J1 S8 b% U
What 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.5 O% U* f+ K* b5 ?3 P
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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./ M9 Z& x r: ]' u, D7 k. _# h
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