Date Added: Dec 2010
Cloud Computing is becoming attractive these days. Many big companies, such as Google, Amazon and IBM, have promoted their own cloud computing platforms for customers to deploy their web applications on these platforms. Besides some existing security risks for a traditional web server hosting company, some new security vulnerabilities appear with this new technology, for instance Virtual Machine monitoring and storage isolation. The cloud computing platform needs a better design to mitigate these risks. This paper is a survey, which introduces the concept of cloud computing and some industrial implementation architecture and the threat model for cloud computing and a case study of analyzing three implementations' risks situations. At the end some general guides will be stated.