CNN Tech reported on November 16, 2017 a new technology developed by US-based firm “Descartes Biometrics”, it works like this: Firstly, the user downloads the ERGO software onto their smartphone. The user lifts the device to the side of their head and presses the center of the touch screen on their ear. A sound is then sent into the ear, and due to the “unique geometry of the ear,” the sound that is echoed back is specific to each individual. ERGO uses sensors embedded in modern Android smartphones, meaning no additional hardware is required. Authentication takes about one second, and improves with use, storing up to ten scans of the user’s ear.