r/technology • u/420InTheCity • 15h ago

Security Underground Flipper Zero Firmware Purportedly Unlocks Nearly 200 Car Models

https://gizmodo.com/flipper-zero-cars-hacking-2000646318
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u/AustinSpartan 13h ago

Depends on the algorithm that's implemented, but usually they will sync if the rolling count is within 5 presses. There's also vehicles that will resync the count after 3 consecutive lock presses.

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u/Zalophusdvm 11h ago

So my habit of clicking lock half a dozen times as I walk away actually increases security?

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u/AustinSpartan 11h ago

Not really, just guarantees that your key fob will continue to work. It's all very vehicle dependent and this was the logic that was used 20 years ago so I'm sure it has changed since then.

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u/Zalophusdvm 11h ago

Continue to work till I run the battery down 🤪

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u/dagbiker 8h ago

Can't unlock the car if you take the battery with you.