Cloud Computing has been one of the latest technological advancements in the field of Information and Communication Technology. It provides users with unique computing features such as multitenancy, cost effectiveness, large scalability etc. But with rising use, security of the data stored in the cloud, finds an important issue to the researchers and cloud service providers. Here in this paper, we have examined the current security standards and compliance models that are being followed by the Cloud Service Providers to ensure security of user data and gain their trust. We have also proposed a model to automate the auditing process. Keywords: Cloud computing, security assurance, security compliance, cloud security