The article deals with problems of economic and financial security ensuring both in companies and state. The Corruption Perceptions Index has been analyzed as one of the most important indicators in this sphere. The following research methods have been used: generalizing theoretical knowledge, comparison method, method of analysis and synthesis, statistical analysis, factual analysis. The authors give their own definitions to such concepts as “security”, “financial security of the enterprise”, “economic security of the enterprise”. There have been also systemized the threats to the economic security of the enterprise, as well as means of its strengthening. The rating of Ukraine according to the Corruption Perceptions Index has been identified. Also, the perspectives of future research have been defined.

World economic crises, internal economic and political instability have led to declining the level of investment attractiveness and investment security of Ukraine. The aim of the article is to propose an integral index in order to assess investment environment security and determine factors affecting the investment environment security of Ukraine. The suggested assessment is based on the data of World Bank’s indexes with the following blocks of factors: the availability of economic freedom, favorable organizational conditions for doing business, political and legal freedom, supply of resources and infrastructure development. The assessment of Ukrainian investment environment security and its Western neighbors – the European Union member states – has shown that it has lowest rank and highest volatility in Ukraine. The article identifies a direct statistical relation between the volume of foreign direct investment flows in Ukraine and the indicator of political stability and the absence of violence in the country. The main reasons of investment attractiveness reduction in Ukraine were as follows: conservative attitude of investors towards risks due to political instability, manifestations of violence and terrorism; deterioration of the overall financial situation of enterprises, which are the recipients of investments. The article substantiates that conditions for the investment attraction and secure environment in Ukraine have not been formed yet. The system of indicators and criteria for assessing the level of investment environment security should be expanded.

The methodological approach to the integral assessment of business environment security is developed in the article; the blocks of factors of business environment security are identified and the indices which affect the formation of economic security of entrepreneurship are analyzed. The integral indicator for assessing business environment security is based on 6 indicators, which are the most significant elements of the business environment formation: the availability of basic economic freedoms, the favorable organizational conditions for doing business, the state of political and legal system, the level (quality) of life, resource provision and infrastructure development, innovation development. A comparative analysis of the integral indicator of business environment security of Ukraine with the Baltic countries, Black Sea region countries and the Visegrad Group countries is carried out. The article identifies interdependence between the business environment security and the share of unprofitable enterprises. The functional relationship of the business environment security with the number of bankrupt enterprises and the level of enterprises losses is substantiated as well. The model shows that the increase of environmental security leads to the decrease of a number of bankruptcies exponentially. The negative and positive factors which influence the formation of economic security of entrepreneurship are revealed.

Purpose. To build a mathematical model and algorithms for optimizing the losses that the company may suffer from information threats and the costs necessary to prevent these losses. Methodology. General and special methods of cognition were used to perform scientific research: comparative analysis, logical generalization and systematization, mathematical abstraction, system-oriented analysis. Findings. A mathematical model and optimization algorithms are proposed for using an improved methodological approach to the formation of information security of the enterprise in terms of minimizing costs and losses. This allows one not only to analyze threats and determine the weight of factors influence but also to determine effective tactics and strategies to minimize their consequences. Originality. During the research, a mathematical model and algorithms of optimization of losses from information threats and expenses of the enterprise for their neutralization are created. It also allows us to predict the likely consequences of probable threats. Methodological approaches to the formation of the optimal level of costs to maintain the appropriate level of security have been improved. It is shown that the analysis of information risks and threats of assessment of financial and economic stability of the enterprise to information danger should be accompanied by comparison in a dynamic mode of the corresponding economic indicators. The introduction of a methodological approach to comparing the real and optimal values of the integrated indicator of resilience allows managers to assess trends and directions of projected information threats and the need to allocate sufficient resources for protection. Practical value. The results of the study can be used by practitioners to implement effective management of information risks and neutralize their impact on economic indicators of the enterprise and by scientists to develop strategies and methods to neutralize information threats to financial and economic stability, production and economic stability and organizational and economic stability, the latest methods of enterprise risk management.

Introduction. In the conceptual foun­dations of the theory of economic security of the enterprise, which determine the strategy, tactics and tools of its provision, one of the main places belongs to the economic interests of the enterprise. Problem. In the conditions of a full-scale military aggression of the Russian Federa­tion in Ukraine, maintaining the necessary and suf­ficient level of economic security is one of the main problems of any domestic enter­prise. The above mentioned determines the expediency of their in-depth study, in parti­cular by constructing modern classifica­tions of the economic interests of the enterprise. The aim of the article is to supplement the classification features of the economic interests of the enterprise in the theory of economic security. Methods. General scientific and special methods of cognition are used: abstract-logi­cal and comparative; analysis and synthesis, analogy and system approach; theoretical gene­ralization and formulation of conclusions. Results. The main classifications of the eco­nomic interests of the enterprise, presented in the scientific literature, were studied, and certain short­comings of the features of the clas­sification of ec­onomic interests proposed by the authors were revealed. The author’s classifica­tion of the economic inte­rests of the enterprise was proposed. Supple­menting the classification of economic interests of T.V. Sak with indica­tors according to the following characteristics: according to the national form of ownership of the capital of stakeholders, according to the level of social utility, according to the level of materiality of the influence on the economic pro­cesses and economic security of the enter­prise, according to the potential of achieve­ment, according to the level of need for imple­mentation, according to the dynamics of incre­asing relevance. Conclusions. The study made it possible to clarify and supplement the main charac­teristics of the classification of the economic interests of the enterprise. The use of the pro­posed signs will contribute to deepening the understanding of the economic interests of the enterprise in the modern concept of eco­nomic security.