Cloud computing has evolved from well-known concepts such as grid, utility and autonomic computing. Today, the term cloud computing describes different ways of providing on-demand and pay-per-use access to pools of elastic virtualised computing resources. However, beside the obvious financial advantages of this approach there exist reasonable reservations about the deployment of cloud computing services, in essence concerning data security and compliance. From a users perspective, one hands over the control over his data and services to his provider when entering the cloud. The FlexCloud research group (http://flexcloud.eu) aims at supporting a secure cloud computing life cycle and works on new methods and technical support to place the user in a position to benefit from the advantages of cloud computing without giving up the sovereignty over his data and applications. This talk will summarize the on-going activities of the FlexCloud group and give an overview of our first results.