Cloud computing, otherwise known as on-demand computing model that enables access to computation and storage resources on the internet. However, consumers are apprehensive about adopting this computing model because it is still plagued by security issues. Security is still an un resolved problem in cloud applications.In this paper, we present the key issues of data security in the cloud computing technology , and are described in four areas: storage security, network security, data security and

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... virtualization. We then discuss some frameworks for addressing the security issues. Issues related to standardization, multi-tenancy, and federation have also been addressed for extensive usage of cloud computing technology in various applications.