Public cloud services are in need of a thorough security assessment. Tools developed at Fraunhofer AISEC are supporting enterprises in a continuous security assessment of their cloud service deployment. Fraunhofer AISEC, under the responsibility of Prof. Dr. Claudia Eckert, is one of the leading research institutions for applied and integrated Security in Europe. Fraunhofer AISEC is focused on development of application-oriented security solutions and their precise and tailored integration into existing systems. Core competences of over 90 scientific and technical members of staff lie in the areas of hardware security and the security of embedded systems, product and intellectual property protection, and security of cloud- and service-oriented computing.