Globalization has led to a significant change in the way economic and financial processes are carried out on a national and international scale between countries, companies, organizations and citizens from different parts of the world. Among the many changes that have taken place in the field of international finance are the introduction and use of the Internet and information and communication technologies as part of various business processes. At the same time, the issue of ensuring the proper protection of finances is of interest and is extremely important for today's environment. Building on a diverse literature this article examines the main views expressed in the economic scientific literature in the field of “financial security”. By summarizing the various scientific studies in this area, we will reveal the main characteristics of the concept of ―financial security‖. The main purpose of the present paper is to study and review the theoretical bases of the term “financial security”, to reveal its main characteristics and representations on different levels and on this basis to highlight the main threats that must be addressed in the coming years. The research area is the financial security both for governments and enterprises as well. In view of the above the author sets out the following research tasks: to outline the aspects, specifics and characteristics of the concept of "financial security"; to highlight current threats to the financial security of countries and enterprises. The complex and interdisciplinary nature of the topic predetermine the use of diverse scientific approaches and methods. The research applies a system of general scientific, theoretical and specific research methods generalizing theoretical knowledge, logical analysis and summary analysis. The method of tabular presentation of characteristics is also used in the current scientific article. When forming the main conclusions of this research and interpreting the results, we used data from official sources for analysis of the considered processes. The actuality of the topic of this study is produced on the one hand due to the great importance of financial security for the economy, countries and enterprises, and, on the other hand by the need for further research in this economic and financial area. The main conclusions and results could be used to improve the financial security of different entities established in this paper.