Abstract: Cloud computing is Internet-based computing, whereby shared resources, software and information, are provided with computers and devices on-demand. It also makes security problems more complicate and more important than before. The data breaches threat for Cloud Computing is ranking No.1 and high risk level. This research proposed to build ontology of data breaches threat for Cloud Computing based on the concepts. This paper also shows how discover the aspects items which are related with our domain “Data Breaches Threat”. We collected huge data and extracted it into “concepts” using KAON tool.

Keywords: Cloud Computing, Ontology, Data Breach, KAON.