Definition of economic security of the subject of economic activity

. Unstable Economy of Ukraine due to political and military factors accelerates the negative impact of the competitive environment in entities making their business vulnerable and unstable. The issue of companies’ economic security is becoming especially important. Gained experience is to be improved and further development of theoretical and methodological apparatus of companies’ economic security as an important direction of Security Studies is required.Goal. The article aims to study the author’s definition of economic security entities on the basis of acquired scientific experience. The object of the study is the processes of economic security. The subject of research is the theoretical bases of economic security at a separate business entity.Methods. Theoretical and methodological basis of the study is a systematic approach to the definition of economic security as a scientific category, scientific works of domestic and foreign scientists, the method of theoretical generalization, analysis, synthesis, abstract and logical, and others.Results. The article analyzes the current set of definitions of the company’s economic security. The basic approaches to the interpretation of the term are grounded. The expediency of refining classifications and increasing the number of approaches to the definition of economic security are substantiated. The author defines the complex economic category “economic security” as it relates to the business entity.Discussion. It is necessary to clarify purposes and principles of providing economic security of business entity under unstable economy.