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The article discusses the issues of the critical infrastructure security management from the perspective of entities responsible for its security and development of an integral model of critical infrastructure security, and shows the methodology of situational management of critical infrastructure safety. Proposed solutions are used for CI mapping, enabling the generation of adverse event scenarios, estimation of the risks dependent on the considered CI, and determination of decision problem, indicating a set of protection activities for elimination or reduction of the risk in the security threshold.

The paper presents the concept and functional requirements of an IT tool to assist in the development of adverse event scenarios and the location of this IT tool in the process of civil planning. In addition, the paper provides procedures: development of adverse events scenarios, determination of a decision problem and verification of safeguards proposed in response to identified threats to which the object under consideration is exposed.