Security Concerns at Various Levels of Cloud Computing Paradigm: A Review

Cloud computing has become a buzzword in IT industry these days and organization are getting attracted towards this magnet for expanding their infrastructure at cheaper rates. However, with all flexibility offered by cloud there are concerns about security, integrity and availability of precious information of cloud users. Conventional protection mechanisms need to be reconsidered for their effectiveness, since cloud service model is distinctly different from other internet based service models. Recently, much research efforts are being done in cloud security but still more efforts are desired. Since cloud security is a sensitive dimension affecting its wide commercial acceptance. This work explores various levels of security concerns in cloud environment and lists available mechanism for addressing them.