The article identifies the essence of the concept of banking innovations and their role in the financial security of banking institutions. Features of development of technological banking innovations in Ukraine, including in the conditions of influence of COVID-19 are considered. The characteristics of banking innovations are considered, the criteria to be met by banking innovations both on the part of the client and on the part of the bank are identified. The classification of banking innovations according to such features as: by time aspect, by novelty, by causes of occurrence, by volume of influence, by influence on behavior, by scale of innovation, etc. is given. It is proved that the financial security of a banking institution should provide protection of banks from the impact of external and internal threats, as well as minimize the level of their negative impact. The basic principles of financial security of banking innovations in order to ensure the stable development of the latter are described. It is established that the most relevant and in demand in the market in the development of coronavirus infection were such technological innovations of remote capabilities as: contactless payments, online services, mobile banking applications, electronic money transfers, virtual cards. The peculiarities of the use of technological innovations by banking institutions in Ukraine and their impact on the security of banking institutions and customers are noted. In order to conduct the study, such general scientific and specific research methods were used as: the logical method, the method of analysis and synthesis, the system method, the method of theoretical generalization, the grouping method, the expert method and the method of logical analysis.