The fourth skills area will be to realise the vision of connecting intelligent devices seamlessly and everywhere and to allow them to share their sensing, monitoring and actuating capabilities. This is often referred to as “M2M” or the “Internet of Things”. Currently, there are key technical barriers in the widespread adoption of “intelligent networked” devices. First, machine interaction typically relies on context- awareness (e.g. location) which is problematic in indoor environments. Second, sensors and actuators are inherently unreliable, often lacking calibration, quality estimation, energy management and fault detection capabilities. This compromises their practical use. Third, most M2M solutions have been designed to meet functional requirements, ignoring security and privacy concerns, both in peer-to-peer ad-hoc networks and cellular networks.