Cloud computing is the emerging technology in the data services platform. The networked systems that connected through the systematic nature for the cloud interpretation from the client level to the cloud level usage defines with the ranked search methodology called as Multi-keyword Ranked SEarch (MRSE), the security level in the multicast ranked search remains unhold due to various extrinsic attacks that causes the information lose. To prevent this attack, the authors propose a Dynamic Security Strategy (DSS) through which the entire information which is placed inside the cloud storage is set to be secure.