International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Number of users used cloud to store their data. Data storage security: it is security of data on the storage media. In cloud computing security is an important factor for ensuring clients that in the cloud, data is placed on a secure mode. For protecting data from malicious users, client authentication becomes an important task. There are a number of security and privacy issues/concerns associated with cloud computing but these issues fall into two broad categories: security and privacy issues faced by cloud providers and security and privacy issues faced by their customers. This paper outlines what cloud computing is, the various cloud models and the main security risks and issues that are currently present within the cloud computing.