Once you are at physical access, you can go to town. Optical surveillance and even recording the sound of the keys being stroked to calibrate[0] an acoustic cry

Once you are at physical access, you can go to town. Optical surveillance and even recording the sound of the keys being stroked to calibrate[0] an acoustic cryptoanalysis algorithm.[1] [0] https://www.schneier.com/blog/archives/2005/09/snooping_on_tex.html https://www.schneier.com/blog/archives/2005/09/snooping_on_t... [new algorithms require less time] [1]https://en.wikipedia.org/wiki/Acoustic_cryptanalysis https://en.wikipedia.org/wiki/Acoustic_cryptanalysis