We are now in a world with an unbelievable lack of privacy. Companies are irresponsible about the storage of personal information — they sell it, or they care little about its security, which is why so many thefts happen. On this note, Bitcoin began to gain popularity.In 2017, when many came to the crypto market, people mistakenly believed that bitcoin was private when in reality it could be called pseudo-privacy. Now there are fewer such misunderstandings, but there is also no proper solution to the problem — the complete openness of the entire network, moreover, for everyone. Here Iron Fish comes to help us with its blockchain and cryptocurrency.