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[return to "New acoustic attack steals data from keystrokes with 95% accuracy"]
1. Maximi+VC[view] [source] 2023-08-05 20:42:47
>>mikece+(OP)
Now they can make wireless keyboards that don't need a battery or radio!
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2. xxs+Pv1[view] [source] 2023-08-06 06:36:16
>>Maximi+VC
That's already possible, the lack of battery, but likely impractical.

There is enough energy during key press/release to be usable for sending radio signal, however it won't be sufficient to do it while holding a key. A combination of a solar panel, piezoelectric keys and a tiny li-ion (as backup) may be sufficient for a 'battery-less' keyboard, but it will be too expensive.

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