U.S. Treasury Secretary: will impose very strict supervision on cryptocurrencies such as Bitcoin

According to CNBC, US Treasury Secretary Steven Mnuchin said the department will impose very strict regulations on bitcoin and other cryptocurrencies, lest they become like anonymous UBS bank accounts, which clearly poses a risk to the financial system. Mnuchin said that there are still billions of dollars in bitcoin and other cryptocurrency transactions for illegal purposes. What we need to confirm is that no matter how large the amount is, anyone who uses Bitcoin needs to do it for legitimate purposes rather than for illegal purposes.