A comprehensive review on cloud computing security

Cloud computing have turn out to be a popular buzzword in IT industry as area of computer technology. For expanding the infrastructure at cheaper cost, globally the organizations are moving toward cloud based system. Cloud computing reduces the client organization having the complete physical infrastructure of software and hardware. However, with all vitality and flexibility provided by cloud there are some concerns regarding security which may turn out to be a strong barrier. Service providers have been geographically dispersed due to enhanced migration of organization from traditional system to the cloud. Hence the data are usually stored in the servers that are remotely located at various places and unauthorized parties may have access to those data which directs to various security issues like data availability, data leakage, resource pooling, diffident interface, cloning, allocation of data and some attacks in the interior. This paper presents a review on the security issues in security standards followed in cloud, infrastructure, access control, third party privacy, confidentiality, reliability and integrity of data. It portrays the techniques employed in addressing cloud security issues and its challenges.