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EFFICIENCY OF SOFTWARE FOR NATIONAL CYBERSECURITY

Volodymyr Khoroshko, Оleksandr Laptiev, Mykola Brailovskyi, Tetiana Laptievа, Serhiі Laptiev · Cybersecurity: Education, Science, Technique · 2025

The article presents a method for assessing the effectiveness of cybersecurity programs (CSP) considering cyberattacks and associated risks, which is a continuation of the authors' previous research. The proposed approach is based on a modification of the target dynamic evaluation method for programs over a specified time interval, enabling the consideration of a complex structure of interrelations between objectives, the impact of cyberattacks, risks, and delays in achieving results. The method involves constructing a network hierarchy of objectives in three stages: first, the main objective is decomposed from top to bottom by identifying sub-objectives that directly influence its achievement, with their types defined (quantitative, qualitative, deterministic, stochastic, qualifying, or threshold); second, a bottom-up analysis is performed to establish feedback loops; third, models of cyberattacks and risks are integrated into the hierarchy. Cyberattacks are modeled as special programs that negatively affect objectives, while risks are accounted for by introducing indicators in the form of additional objectives. The evaluation of CSP effectiveness is based on determining the degre

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