Research on the assessment of the risk situations emergence for automated control systems of the metallurgical industry companies

Abstract

The article presents the assessment method of the risk situations emergence based on the analysis of the probability and frequency of threats emergence for automated control systems of the metallurgical industry companies (ACSMIC). The analysis of the risk dependency on vulnerabilities and threats to ACSMIC assets is carried out, and the relationship between risk, vulnerability, and threat is presented according to a three-level risk assessment scale. When identifying and assessing the risk, existing countermeasures against both external and internal attacks are taken into account, which, in turn, reduces the risk level for the protected organization. In the process of any organization functioning, there may be a need to reassess the risk associated with changes in the structure of the control organization or security policy in the system of the metallurgical industry companies. Therefore, the existing countermeasures are closely related to the concept of risk and require constant correction in the assessment process. Risk is related to the reliability of the functioning of the studied control structure of units and aggregates and their ability to function in accordance with the mode and goals of the production structure in various branches and levels of the hierarchy with an acceptable risk assessment. On the basis of the system concepts and assessment methods of the acceptable risk level, the system-oriented method of identifying the reliability of functioning of self-recovering complex hierarchical structures is proposed, the classification of the risk types of unforeseen situations in complex human-oriented systems that can be applied and implemented in hierarchical control systems is carried out.