It's even worse than that. Recent studies have been able to reproduce the text you type by analyzing the sounds emitted by the keyboard[1] and even the ripples

It's even worse than that. Recent studies have been able to reproduce the text you type by analyzing the sounds emitted by the keyboard[1] and even the ripples produced in the local wifi signal.[2] [1] https://en.wikipedia.org/wiki/Acoustic_cryptanalysis https://en.wikipedia.org/wiki/Acoustic_cryptanalysis [2] https://www.sigmobile.org/mobicom/2015/papers/p90-aliA.pdf https://www.sigmobile.org/mobicom/2015/papers/p90-aliA.pdf