The Internet has become a critical infrastructure for both businesses and individual users and its security has therefore become a priority issue. Security is also an important key to the modern connected world and a crucial factor in inspiring the consumer confidence necessary to achieve commercial success for the new technologies emerging in the Internet of Things (IoT), as well as implementation of Industry 4.0 and eHealth. Another critical development is the growing reliance on virtualization technologies which, in combination with data networking, has enabled Cloud computing. The network operators’ model of using this technology is Network Functions Virtualisation (NFV). Virtualization introduces many benefits as well as the potential for some specific security threats. To counter these threats, it is essential to develop trusted computing platforms. This in turn will ensure that consumers can have confidence in the security of the applications deployed on these platforms.