From a user perspective, Cloud is a service. However, for Cloud Service Providers, integrators and channel partners who construct or build the Cloud, the Cloud architecture is comprised of many Cloud computing components. Examples of these components are hypervisors, Cloud operating systems components such as “Swift”, “Glance” for OpenStack, virtual desktop infrastructure platforms, cloud dedicated firewalls and so on. How can we evaluate the security of these Cloud components? Currently, most of the security standards related to Cloud Computing focus on the information security management system. However, these standards are insufficient to evaluate cloud component security because they focus on management security rather than the technical security requirements of the components. In order to address this gap, the Cloud Component Specifications working group proposes to develop internationally recognized technical security specifications for cloud components.