this post was submitted on 26 Feb 2024
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Experts ​alerted motor trade to security risks of ‘smart key’ systems which have now fuelled highest level of car thefts for a decade.

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[–] givesomefucks@lemmy.world 6 points 8 months ago (6 children)

For garage doors... Yeah, it's been a thing

Because you can sit something there, monitor the rolling codes, then inject so it has a real one.

For a car, you have to follow them around while they lock/unlock repeatedly. And that's only if people are using the button and not proximity. If they're just using proximity, you're going to have to be standing right next to them.

[–] krellor@kbin.social 6 points 8 months ago (5 children)

I think most of the wireless attacks aren't trying to be so sophisticated. They target cars parked at home and use a relay attack that uses a repeater antenna to rebroadcast the signal from the car to the fob inside and vice versa, tricking the car into thinking the fob is nearby. Canada has seen a large spike in this kind of attack. Faraday pouches that you put the fob inside of at home mitigates the attack.

[–] sramder@lemmy.world -1 points 8 months ago (4 children)

So does not leaving your keys by the front door… not that I follow my own advice :-)

[–] lemann@lemmy.dbzer0.com 2 points 8 months ago

Relay attacks don't need the key to be in close proximity, they can be read from almost anywhere in the house if they aren't in a faraday pouch or microwave. Have you seen the size of the antennas these attacks use?

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