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本帖最后由 MaverickZ 于 2022-1-14 23:42 编辑 ; U9 f W& b( i! L3 z4 j( M0 J
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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.1 U, z" w# y1 o( n. l( ], V
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) ?4 b, m( C. D, q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. k; [0 X- c. X2 m# ^
https://www.thatcham.org/relay-attack/
' o$ ^0 c) o' s# n+ k; zWhat is Relay Theft?) g* E. |" t8 ~
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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.2 j0 B& p/ ]9 Z8 m4 Q
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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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, V& A* `$ |1 rThe 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.# Q0 p9 w* n# x* \7 I/ w% R
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