Current secure device authentication and encryption technology has serious limitations in assuring the identity of a given device and its users. ICMetrics, the electronic equivalent of biometrics is a novel, efficient and robust system for device authentication, based on deriving secure encryption keys from the properties of digital systems.This addresses a major area in the security domain, which is currently recognised as inhibiting the economic expansion of digital services at a time where there is a need for increasing security which is relevant to many sectors including mobile commerce, communication, smart devices and Internet of Things (IoT).Learning Outcomes:Understanding alternatives to password and key based securityDevice Authentication using intrinsic device characteristicsAppreciation of advantages of key storage free encryptionApplication perspectives for IoT, mobile, Blockchain and cloud based systemsPotential for enhanced protection of private keys