Industrial Automatic Control Systems and Controllers Annotation << Back Uncertainty in the Analysis of Destructive Information Impacts Romanov A.A. A contradiction between the high uncertainty of the initial data in the process of analyzing destructive information impacts and the probabilistic (statistical) methods used is revealed. It is proposed to eliminate this contradiction by applying methods of the theory of fuzzy sets, the theory of possibilities and mathematical informatics. The concepts of "uncertainty", "damage" and "risk" are defi ned. Keywords: computer attack, ontological, epistemological, semantic uncertainty, damage, risk, fuzzy set, possibility, blurriness. DOI: 10.25791/asu.2.2025.1563 Pp. 23-32.