Cryptocurrencies are not regulated by any type of government organization, such as the State, banks, financial institutions or companies. This gives the possibility of being able to use them anywhere in the world. Cryptocurrencies do not materialize on paper or credit cards. In this case, the money is in virtual wallets protected by a chain of blocks, or database, which is called Blockchain. In these wallets, also called wallets, all operations performed by anyone who has a cryptocurrency are recorded.