A Survey on Security Provided by Multi-Clouds in Cloud Computing

Many enterprises and other organizations store their data on clouds. When using cloud, the client is forced to blindly trust the service provider which is storing the complete data on a single cloud. But now a days single cloud concept is becoming less popular as there are risks of service availability failure, data integrity risks and the possibility of malicious insiders in the single cloud. Due to this the concept of “Cloud-of-Clouds “also known as “inter-clouds ”or “multi-clouds ”is becoming much popular.. Use of cloud-of-clouds provides a higher level of security to the confidential data. This is a survey paper related to research on the use of multi cloud and their security risks.