In Cloud computing, several issues arise due to malicious users. The cloud service provider does not know whether the cloud consumer is an authorized user or an unauthorized user when they access the data from the cloud. The cloud service consumer can interact with the cloud providers. The malicious users can easily hack the user’s private information. The cloud provider cannot able to find this problem. In this paper, we proposed the method is a Trust Management Service (TMS). The advantage of using this methodology is to secure our privacy information and also check whether it is a valid user or not. Protecting the cloud services against malicious user is not an easy task. Our proposed method shows that the capability of finding malicious users and also misleading feedback.