Wearable devices can give away your passwords, according to new research.
In the paper "Friend or Foe?: Your Wearable Devices Reveal Your Personal PIN" scientists from the Stevens Institute of Technology and Binghamton University combined data from embedded sensors in wearable technologies, such as smartwatches and fitness trackers, along with a computer algorithm to crack private PINs and passwords with 80-percent accuracy on the first try and more than 90-percent accuracy after three tries.