Ethereum, litecoin, ripple, stellar, dogecoin, cardano, eos, tron and bitcoin are types of currencies - cryptocurrencies that function as a medium of exchange using cryptography, will one day be used to compete with banking electronic money. Maybe if there is competition between cryptocurrencies and banking electronic money, of course, the government will take policies such as blocking or trespassing, so for example it is an anticipatory step, what steps should we take?