Method for the Criticality Level Assessment for Crisis Situations with Parameters Fuzzification

The impact of crisis situations on the security of state information resources, various institutions, enterprises, organizations and the state as a whole is quite significant. Thus, crisis situations can not only slow down the development of the system that has its influence, but also destroy it in general. It is necessary to take adequate measures of threat and the use of safeguards, which determines the importance of assessing the criticality of the current situation to prevent such an impact. At present, there are no generally accepted universal criteria and an integrated criticality assessment indicator. Therefore, determining the level of criticality of an incident that can cause the crisis situation is an urgent and important scientific task. The study introduces a set of parameters for assessing the level of criticality of the situation, proposed a method for determining the level of criticality using expert approaches and fuzzy logic methods that do not require collection and processing of statistics, and described the procedures for fuzzification defuzzification. The method can help to better assess the criticality of information systems crises and improve protection against attacks, because the result shows the weaknesses of the systems.