Side channels used to be avenues for cyber attacks. Side channels are forms of information that a system generates as a side effect of its operations. In the past, this information was often used in attempts to break a system’s security. A new system measures and analyzes the power consumed by any given device for the sake of ensuring security. It may go on to be a bulwark for the internet of things (IoT), says an engineer at the Savannah River National Laboratory in Aiken, S.C.”]
Source: https://www.csoonline.com/article/3110967/side-channel-power-the-new-security-front.html