Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Mathematical Modeling as a Tool for Substantiating Requirements for Areas of Improvement of Mechanisms for Ensuring Cyber-Stability of Information Infrastructure Objects K.S. SKRYL, E.V. VAYTS, V.V. GAIFULLIN, V.M. SYCHEV The urgency of the problem of assessing the characteristics of measures to ensure the cyber stability of information infrastructure (II) objects is substantiated. The ways of overcoming the shortcomings of the existing methodological apparatus for assessing the security of information are formulated. Examples of the functional representation of cyberattack threats to information resources of II objects are considered. Mathematical models of the characteristics of the cyber resistance of II objects are presented. It illustrates the possibility of forming reasonable requirements for the directions of improving mechanisms for ensuring the cyber stability of II objects, as well as requirements for the characteristics of mechanisms for detecting, preventing and eliminating the consequences of cyber attacks on the information resources of these objects on the basis of the developed mathematical models. Keywords: information infrastructure (II) objects, cyberattack, cyber resilience of an II object, timeliness of information processing at an II object, timeliness of responding to cyberattack threats, technological failure. DOI: 10.25791/pribor.6.2021.1269 Pp. 48-57.