Crypto currency is a virtual coin, the basic unit of which is a coin. It is completely protected from forgery and contains encrypted information. Twain Mining Company deals in trade with crypto currency and offers investments, which in the modern world are in great demand. To date, investment is the best way to increase equity. The basis is that when investing money "works for the owner", even if he does not make any effort. After all, to earn a lot of money, you need to work long and hard, and investment relieves all this and allows you to receive passive income.