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New acoustic attack steals data from keystrokes with 95% accuracy (www.bleepingcomputer.com)

submitted 1 year ago by L4s to c/technology

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New acoustic attack steals data from keystrokes with 95% accuracy::A team of researchers from British universities has trained a deep learning model that can steal data from keyboard keystrokes recorded using a microphone with an accuracy of 95%.

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[–] [email protected] 46 points 1 year ago (5 children)

Tangentially related: Did you know, that it‘s technically also possible to reconstruct sound via smartphone accelerometers and there‘s no restrictions on which apps can use it. Have fun with this info (:

[–] [email protected] 12 points 1 year ago

Thanks, I hate it.

[–] Tangent5280 8 points 1 year ago (1 children)

Reconstruct sound using smartphone accelerators? What do you mean? That accelerometers can act as speakers and produce sound? Or they can act as microphones and record sound as numerical data of vibrations etc? Can you point me to any articles or sources?

[–] Drunemeton 6 points 1 year ago

https://csl.illinois.edu/news/42303

Not the person you replied to, but a quick internet search resulted in that link.

[–] [email protected] 4 points 1 year ago (1 children)

SpyApp is spying in background

User thinks "why is battery draining so fast?"

Opens battery setting

Oh, this app shouldnt work right now

Restricts SpyApp's battery permissions

[–] [email protected] 1 points 1 year ago

Okay now show me the bad ending

[–] [email protected] 3 points 1 year ago (1 children)

are you saying that a cellphone accelerometer can be used as a microphone? That sounds... interesting. Do you have a source?

[–] [email protected] 3 points 1 year ago

I am not the person you are replying to, but if the accelerometers are sensible enough, the vibration of the voice will be picked up by the accelerometer.

Since the sound we make when talking are periodical, it can probably easier to track that periodicity and reconstruct the sound from there.

It's all my (un)educated guess.

[–] [email protected] 1 points 1 year ago

Iirc on newer versions of Android there are restrictions on polling rate of sensor data