Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back New approaches to modeling the internal infringerthe information security V.Y. KARPYCHEVV.M. SYCHEVYU.V. MININ The urgency of research of influence of internal infringers on information security support is justified. Authoring determinations are given concepts “unreliability” and “unloyalty”, and also their correspondence to existing determinations in information security field. The approach to development of the formalized model of the interior infringer of information security is justified and considered. The developed models of vulnerability and unloyalty staff describe objective and subjective factors of violation of information security the specific employee of the organisation and can be used for the analysis of a potential possibility of implementation by it of threats. For exposition of some parametres, in connection with impossibility of their quantitative estimation, the means of the theory of unsharp sets is used. The data domain analysis has allowed to offer an information model of the interior infringer of information security for which development methodology IDEF1X is used. Keywords: information security, model, staff, the infringer, insider, unreliability, unloyalty, vulnerability, a linguistic variable. Contacts: E-mail: zi@bstu.ru Pp. 32-39.