Cloud computing provides an optimum and suitable resource to consumers. All the application has been intended as commercial with abstract provision set where this service summarises application function module by their interface. Critical features of security are collected from reported experiences, researchers testing with accessible service supplier¿s platforms and related systems. Security has been the biggest inhibitors to adopt the basic consideration in the cloud computing. Mostly task scheduling algorithms improves the QoSs to execute jobs and to offer the assumed outcome on time and maintained efficacy and fairness in all jobs. In cloud computing environment secure scheduling plays a vital role and a challenging task to securely schedule the tasks to the resources.