Abstract: The most threatening security issues in cloud computing are discussed in this paper. These include cloud intrusion and denial of service attacks. There are numerous intrusion attacks that threaten the cloud. We discuss the main types of them as well as the deployed intrusion detection and prevention techniques. In addition, the denial of service attack that may render the cloud system inoperable are addressed, and the remedy approaches are highlighted.

Keywords: Denial of Service Attacks, Cloud Intrusion, Cloud Computing.