Nymi bracelet uses biometric heart data to unlock digital and physical doors (video)

Unlike faces and fingerprints, a heart's electrical activity is difficult to fake -- it's a unique and potentially ideal security tool. Bionym is taking advantage of this trustworthiness in its upcoming Nymi bracelet. The wristwear authenticates users through a combination of electrocardiograms and Bluetooth proximity detection; if Nymi recognizes your heart rhythm, it automatically logs you into nearby devices. The bracelet also recognizes gesture commands, and a future developer kit should ext...