A prototypical cyber physical system consists of tiny devices embedded in the physicalworld. These devices have very energy efficient sensing, actuation, computing andcommunication mechanisms built-in. They continuously sense the physical world andrelay this information securely over the internet to a control center using machine tomachine (M2M) protocols and thus enable the Internet of Things (IoT). The control centercontinuously analyses this data and sends back commands over the internet to thesedevices to affect the physical system.