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Additionally, this only happens for cars built for the U.S. The other countries have electronic immobilizer requirements, so they have them.
by throw1230 4y ago
Additionally, this only happens for cars built for the U.S. The other countries have electronic immobilizer requirements, so they have them.
- shortcake27 4y agoAh that makes sense. I briefly combed the article and was confused because I had a factory immobiliser in my base model 97 Lantra.
- katbyte 4y agowas curious, all new cars in canada required them after 2007! https://www.cbc.ca/news/canada/anti-theft-device-now-mandatory-in-canadian-made-vehicles-1.677141 https://www.cbc.ca/news/canada/anti-theft-device-now-mandato... but now we're seeing a rash of thefts of keyless fob vehicles with a relay attack making me glad my tacoma needs a key
- rtpg 4y agoI thought keyless fobs all had some sort of counter to prevent replay attacks
- pseudo0 4y agoRelay, not replay attack. For vehicles that unlock and push to start based on the proximity of the key, basically all you need to do is use a pair of software defined radios to trick the car into thinking that the key is there. Hence a relay attack, where one attacker is located near the key and the other is located near the vehicle, and the two attackers pass the components of the challenge/response to the vehicle via the channel between the two attackers.
- rtpg 4y agoAh, that makes sense. Thanks for the detailed explanation
- rubatuga 4y agoDon't they use time of flight?
- pseudo0 4y agoNewer fobs, sure. But as this article demonstrates, it is very expensive and inconvenient to backport security improvements to millions of vehicles.
- katbyte 4y agobut that of course would cost more money to implement correctly with no further flaws, and many companies are opting for other solutions: https://www.carwow.co.uk/blog/keyless-car-theft-prevention https://www.carwow.co.uk/blog/keyless-car-theft-prevention many many cars are vulnerable to it and will be for a long time.