Objective: to analyze the SupTech and RegTech initiatives of central banks in the context of their essential characteristics and model risks.Methods: the work used a combination of methods of dialectical, empirical, comparative and logical research.Results: SupTech and RegTech technologies are defined; problems in the legal field existing within the framework of their use and ways to solve them are shown; model risks are assessed, in particular, the risks of adverse consequences resulting from the use of inaccuracies, errors, false assumptions and incorrect settings in models.Scientific novelty: the article identifies the model risks and suggests ways to reduce them, in particular, the risks of adverse consequences resulting from the use of inaccuracies, errors, false assumptions and incorrect settings; the work shows the need for a regulatory legal acts system and offers options for interpreting the models results.Practical significance: the main provisions and conclusions of the article can be used to develop a glossary, terms and definitions of SupTech and RegTech initiatives, the regulatory mechanisms and legal framework for their functioning, as well as to develop methods to reduce risks associated with the implementation and functioning of SupTech and RegTech initiatives.

Objective: to consider approaches to countering the use of unfair transaction practices, in particular, market manipulations and insider trading within the functions and powers of the Bank of Russia.Methods: the work used a combination of methods of dialectical, empirical, comparative and logical research.Results: approaches to the definition of market manipulation are established, the main methods of market manipulation are considered. The activity of the Bank of Russia to identify unfair practices in the Russian financial market was studied; the amount of market manipulation cases was identified and analyzed. The approaches were shown, which exist within the framework of the financial market development strategy to counteract the use of unfair transactions practices, including the practices of market manipulation and the use of insider trading; promising areas of development in the specified areas were identified.Scientific novelty: the article consolidates the dynamics of the activities of the Bank of Russia, the probable problem areas and the potential in the field of countering the unfair transactions practices, including market manipulation and insider trading; the amount of identified cases of market manipulation is analyzed.Practical significance: the main provisions and conclusions of the article can be used in the further analysis of countering the use of unfair behavior practices in the financial market and in forming a glossary.