The article deals with the study of the financial security of the state as a component of its national security. It has been established that financial security is state’s ability to react in an adequate and immediate way to internal and external negative financial influences in peacetime and in emergency situations, in particular in the context of a hybrid war. It has been established that the components of the financial security of the state are banking, debt, budget, currency and monetary security. It has been found out that corruption, financial and economic crime, hybrid war, fiscal decentralization, and lack of a strategy to protect the financial and economic interests of the state are threats to the financial security of the states in the present conditions. At the same time, proper protection of the financial security of the state against internal and external threats is possible only in case of quality management of the financial and economic sphere, first of all, this is the identification of threats to the financial security of the state, conducting of financial control, and counteraction and combating against financial and economic crimes, which is the task of law enforcement agencies. The development of the idea of creating a single law enforcement agency of Ukraine empowered to prevent, detect, suspend and investigate financial and economic crimes was considered. For comparison, attention was drawn to foreign experience, namely Italy, Romania, Macedonia, Austria, Croatia, Latvia, Lithuania, for which the activity of such law enforcement agencies is already established practice. The positive aspects which can be implemented in Ukraine as well as in other countries, intending to create a new law enforcement entity, were emphasized.
The paper aims at distinguishing the assumptions and component parts of financial system sustainability formation. Partly, sustainability of financial system can be expressed through the functions of financial system. Three financial subsystems are distinguished in the research: public finance, business finance and personal finance. The sustainable and efficient operation of each subsystem contributes to the sustainability of financial system as a whole. Also, sustainability of each of the subsystem can be measured by different indicators. In order to determine the strength of impact of various financial functions to the financial system such indicators as capital investments into financial and insurance activities, financial and insurance activities’ value added, as well as value of production and purchase of goods and services by the financial companies is analysed. Finally, the scheme of financial system sustainability is presented. The key conclusion of the research states that the synergistic effect of sustainable development of three fields of finance influences the sustainable development of the whole financial system and even can spread its impact beyond the limits of financial system.