Large financial institutions are feeling the fear of decentralization and anonymity in the world of cryptocurrencies. Probably the main obstacle to the full recognition of crypto. But the financial giants are not sitting idly by. The Bank for International Settlements, for example, has undertaken the development of an improved system for tracking transactions on the Bitcoin network. The task seems difficult - to provide authorities with an accurate picture of how, where and by whom cryptocurrency is used, thereby depriving users of anonymity. However, many countries have similar projects.