zlacker

>>mikece+(OP)
So they generated training data from one laptop and microphone then generated test data with the exact same laptop and microphone in the same setup, possibly one person pressing the keys too. For the Zoom model they trained a new model with data gathered from Zoom. They call it a practical side channel attack but they didnt do anything to see if this approach could generalize at all

>>lispis+Pq
The answer is that likely all the above are used.

Asking for “what signal it is detecting” might be better asked from a “what is the greatest signal bearing information” being used… which would help in averting attacks.

This kind of stuff could be real menacing in all sorts of public places like airports, coffee shops and etc.