Mostafa Rashidi - MSc. in Information Technology Management, Faculty of Management and Economic, Tarbiat Modares University, Tehran, Iran

The Information Security is the main component of IT businesses. In the this study, after a comprehensive review of researches related to Information Security and international police alerts on Information Security etc. the ontology of knowledge of the Information Security in Business -Government (B2G) was evaluated in electronic businesses using fuzzy sets, and the opinions of 172 industrial and academic experts have been used. The most important results of this research are the representation and conceptualization of the knowledge of the area of cyberspace security in a hierarchical manner in the third level of formalization, and also the more precise expression of the relationship between the concepts of Information Security using fuzzy sets. At the end, using fuzzy sets, redirecting official and commercial websites to fake websites in a whole-part association, identity theft through personal computers in a whole-part association, self-infiltration in a whole-part association, viruses in a whole-part association, electronic criminality with spy intentions in organizational systems in a part-whole association, online self-disclosure in a whole-part association, electronic crimes with the intention of destroying firms systems in a part-whole association.

Information Security , Business-Government (B2G) , Ontology , Fuzzy Logic