Abstract: The human factor is considered in the work from the point of view of threat of influence on information security problems. A review of the expert assessment of security threats over different years showed that the growing influence of the human factor is increasing all the time. The article outlines a number of security threats that are most affected by the human factor, which occupy leading positions in general statistics. The method of calculating the influence of the human factor on the main characteristics of information security threats is given: probability and criticality. The study was based on work with the probability of occurrence and criticality of unrelated threats to information security with the presence of the human factor. The paper reviews the expert assessment of information security threats, which consisted in identifying the most likely and critical threats to information security with the presence of a human factor. The above method of calculating the impact of the human factor on information security threats helps to understand how critical the impact of the human factor is, to clearly distinguish its influence and to trace the level of its impact, which is absent in most modern threat assessment methods due to the consideration of information security threats in general, without taking into account one or another factor .

Abstract: Currently, more attention is paid to the protection of information resources against various threats. There are numerous methods of risk assessment and management, which are aimed at minimizing the threats to information security. However, the risk assessment generally considered a threat, that is, under the action of all potential factors. Wherein the one or other factor may have more influence on the particular threat than others. The paper presents a mathematical model for evaluating the impact coefficient of a single factor on information security threats. The study was based on the evaluation of probability of occurrence and criticality of unrelated threats to information security. The study was based on the probability of occurrence and criticality of unrelated threats to information security. The mathematical model presented in the paper makes it possible to assess the characteristics of threats under the influence of a specific factor. This in turn helps to understand how much a single factor strongly influences information security. The data obtained makes it possible to optimize the protection system counteracting the most critical factors.