Дослідження імпульсних процесів на когнітивній карті для визначення зміни рівня захищеності системи захисту інформації

Abstract

A characteristic feature of the XXI century is the introduction of highly intelligent information technology in all spheres of public activity, which creates a number of dangers associated with the rapid development of various threats. Therefore, issues related to ensuring the reliable and secure operation of information protection systems and increasing their level of security are currently relevant. To solve these problems, it is important to identify threats in a timely manner, while establishing a change in the level of security of the studied system. In this regard, it is proposed to conduct a study of impulse processes on a fuzzy cognitive map to determine changes in the level of security of the information security system. This technique is based on the propagation of the impulse introduced into the concept (or several concepts) of the cognitive map, which spreads through the system amplifies or fades. To achieve this goal, a matrix of transitive closure is formed, which reflects the change in the state of each system concept at the time of stabilization of the pulse process. The analysis of this matrix allowed for simple pulse processes with certain initial vertices to establish a change in the level of security of the information security system. In addition, the most important concepts of the cognitive map have been identified, which as a result of the impulse process will have the greatest impact on the security of the studied system. To automate pulse modeling, a software tool has been developed that allows to visualize the evolutionary development of the system when introducing perturbations into a concept or several concepts of the cognitive map. The results of this study will improve the forecasting of situations in the implementation of potential threats, which, in turn, will increase the effectiveness of timely decisions aimed at improving the security of the information security system.