Today cloud computing is well-known for touching all periphery of technology with its on-demand and elastic capability. Ever since it has come into picture, security has remained a major concern. VM model is already known to be vulnerable to various issues.We introduce Tus-Man protocol which will act in addition to existing system to make computing secure enough for both service provider as well as service consumers. In this protocol, we suggest a tunnel-based protocol to make data transfer not only secure but also safe enough against any malicious attack.