Google wants to replace traditional passwords on Android with trust scores, and it is planning to do it by 2017. The IT giant intends to use Googles Trust API technology developed by the Advanced Technology and Projects division to create a trust score. Google will use a number of metrics, such as typing speed, facial recognition, vocal inflexions, vocal patterns, and proximity to familiar Bluetooth devices and Wi-Fi hotspots to calculate the score. A high score will be assigned by matching biometric information and location-based data.”]
Source: http://securityaffairs.co/wordpress/47646/mobile-2/android-trust-scores.html