Insider and flooding attack in cloud: A discussion

Intrusions are generally refereed as an attempt to bypass of security policy of the computer systems or networks, i.e., the violation of security policies of computer systems. Indeed, such attempt on computer systems may give rise to serious disasters with high economic impacts on IT-infrastructure. In this paper, the two most serious intrusions in the cloud, namely, “Insider attack” and “Flooding attack” are considered for the discussion. The various existing survey report, characteristics of these two intrusions and techniques used to provide defense against these threats are highlighted. It has been revealed that none of the existing solution is sufficient to provide strong defense against these intrusions. Finally, few solutions for strong defense, especially, from insider attack, are suggested.