The rapid spread of cloud computing has drawn significant attention and scrutiny in the media over recent months. It has also raised policy questions concerning how people, organizations, and governments handle information and interactions in the cloud environment. While moving to the cloud offers recognized benefits of cutting capital expenditure and enabling the more efficient use of computing resources, questions of information security, data privacy, interoperability, reliability and liability persist and need to be considered carefully and addressed rigorously. Lack of interoperability and portability between providers makes it difficult to migrate data from one service to another - good for cloud service providers, but not necessarily good for end-users. What happens if the business goes bust, or decides to change?