METHODS FOR ASSESSING INFORMATION SECURITY IN COMMUNICATION NETWORKS

The article considers methodological approaches to determining and assessing information security indicators in modern security systems. The authors focus on the complexity of the process of selecting indicators to assess the level of security, which requires taking into account a wide range of factors. These include the characteristics of protected components, destabilizing environmental influences, protection mechanisms, and the time aspect, which plays a key role in predicting the effectiveness of protective measures. A generalized approach to constructing an integral indicator is proposed, which allows for a comprehensive assessment of the state of information security. This approach is based on the formation of a system of vectors that include initial characteristics, complex security indicators, security parameters, and weighting factors. This method provides the ability to take into account various aspects of security and their relationships. For the practical application of security assessment models, three main methodological approaches are distinguished: empirical, theoretical, and combined theoretical-empirical. Practical recommendations are given for the effective application of assessment models. In particular, the need to involve highly qualified specialists who are able to adequately interpret the data obtained is emphasized. It is important to consider the behavior of indicators when changing input data, which allows predicting the system's response to new threats. To select the optimal variant of the protection system, it is proposed to use a modified minimax criterion. This approach allows taking into account the set of private quality criteria and provides the best value among the worst normalized indicators. This method provides a balance between various aspects of security, helping to find the optimal solution when designing and evaluating information protection systems. The proposed methodological approaches and practical recommendations are of great importance for increasing the effectiveness of information protection systems. They allow not only to assess the current state of security, but also to predict possible risks, which is important for ensuring the long-term stability of information systems.