Cloud Computing Security: From Single to Multi-clouds

TLDR

Cloud computing has rapidly expanded, offering low cost and data accessibility, but security concerns—especially with untrusted single‑cloud providers—have driven a shift toward multi‑cloud architectures. The study surveys recent research on single and multi‑cloud security and promotes multi‑cloud adoption to mitigate user security risks. The authors conduct a survey of recent research on single and multi‑cloud security, reviewing potential solutions. The survey reveals that multi‑cloud security research has received less attention than single‑cloud studies.

Abstract

The use of cloud computing has increased rapidly in many organizations. Cloud computing provides many benefits in terms of low cost and accessibility of data. Ensuring the security of cloud computing is a major factor in the cloud computing environment, as users often store sensitive information with cloud storage providers but these providers may be untrusted. Dealing with "single cloud" providers is predicted to become less popular with customers due to risks of service availability failure and the possibility of malicious insiders in the single cloud. A movement towards "multi-clouds", or in other words, "interclouds" or "cloud-of-clouds" has emerged recently. This paper surveys recent research related to single and multi-cloud security and addresses possible solutions. It is found that the research into the use of multi-cloud providers to maintain security has received less attention from the research community than has the use of single clouds. This work aims to promote the use of multi-clouds due to its ability to reduce security risks that affect the cloud computing user.