A Review of Cloud Computing Security Issues

Compute clouds are enormous server farms packed with computing power and storage space accessible through the Internet. Instead of having to manage one's own infrastructure to run applications, server time and storage space can be bought from an external service provider. From the customers' point of view the benefit behind this idea is to be able to dynamically adjust computing power up or down to meet the demand for that power at a particular moment. This kind of flexibility not only ensures that no costs are incurred by excess processing capacity, but also enables hardware infrastructure to scale up with business growth. But security is very big concern in the data sharing in the network. Same as in cloud computing data security is also a very sensitive matter. This paper discusses the concept of Cloud computing to achieve a complete definition of what a Cloud is and its security issues, More than 20 definitions have been studied allowing for the extraction of a consensus definition as well as a minimum definition containing the essential characteristics. This paper pays much attention to the security issues of Cloud computing.