Information Security in Cloud Computing

In cloud computing IT (Information Technology) related resources like infrastructure, platform and software can be utilized using web based tools and application through internet. Here Organizations are moving to the cloud computing some faster than others. However, moving to the cloud presents the organization with a number of risks to assess. Information security is the most critical risk for many organizations. This is because the intellectual property, trade secrets, personally identifiable information, or other sensitive information can be powered by protecting information. This paper classified cloud security based on the three service models of cloud computing SaaS, PaaS and IaaS. Attributes for each type of security has also identified and briefly described here. We compared securities provided in different services by world's best known cloud service providing companies such as Amazon AWS, Google App Engine, Windows Azure etc. considering cloud security category. Furthermore, we included recommendations for organizations who have decided to move their data into the cloud, but confused to choose the best service provider for their organization regarding information security.