Cloud computing is rapidly gaining popularity. However, like any new system, cloud computing is facing some significant challenges. The most significant challenge faced by cloud adopters is related to legal compliance, security controls, privacy and trust. This paper proposes a novel security management framework by employing data mining to detect, contain and prevent attacks on cloud computing systems. Given that the security frameworks and related controls on cloud computing are still evolving, this research may prove to be a useful piece of contribution in enhancing the theoretical foundation established by existing studies. © 2005 - 2014 JATIT & LLS. All rights reserved.