hold your phone very very still when unlocking it. http://www.digitaltrends.com/mobile/smartphone-pin-code-gyroscope-data/
@bcrypt it's getting to the point where the mere quantum entanglement of me with my phone is enough to crack my pin.

@bcrypt always dance when unlocking your phone! Would result in overall more positive tone of everyday communications as a side effect!

:man_dancing:

@bcrypt But despite what the article says - the "PIN Recovery" is possible with other sensors as well :)
@bcrypt eeep. and that reminds me of using a phone to pick up keyboard vibrations to steal passwords http://www.cc.gatech.edu/fac/traynor/papers/traynor-ccs11.pdf
@bcrypt At one point, I read an article like this, and it turned out they had to limit the space to less than the 10000 4-number pins to get even moderate accuracy. Do you have the paper link to check?