Study on the Security Models and Strategies of Cloud Computing

Cloud computing is introducing many huge changes to people's lifestyle and working pattern recently for its multitudinous benefits. However, the security of cloud computing is always the focus of numerous potential cloud customers, and a big barrier for its widespread applications. In this paper, to facilitate customers to understand the security status quo of cloud computing and contribute some efforts to improving the security level of cloud computing, we surveyed the existing popular security models of cloud computing, e.g. multiple-tenancy model, risk accumulation model, cube model of cloud computing, and summarized the main security risks of cloud computing deriving from different organizations. Finally, we gave some security strategies from the perspective of construction, operation and security incident response to relieve the common security issues of cloud computing.