Security and privacy in cloud computing

Cloud computing is a technology based on internet, where a pool of shared resources, called the cloud, and data centers maintain and store the client data. Cloud providers like Google, Microsoft and Amazon enables users to use these resources without acquiring them explicitly or physically. This research paper outlines what cloud computing is, services it provides, it's various types, principles of security and highlights green data centers. Also, it analyses the key security issues that envelopes its market today with safety measures, to serve server providers and enterprises in the best way possible.