Earbud sensors can authenticate users by their heartbeat, study finds (opens in new tab)

Researchers built a continuous authentication system called AccLock that identifies a wearer by the tiny vibrations a heartbeat makes inside the ear canal. The signal comes from an accelerometer of the kind already sitting inside many wireless earbuds, so no extra hardware is needed. The point is to keep verifying that the person wearing the device is the legitimate user long after the initial unlock. Example of an application scenario for AccLock (Source: Research paper) … More → The post Ea...