1. Crypto coins have been leading the new global currency, even more people are getting used with these attractive way for paying doubts, investing in projects and making transferences to buy the house's groceries. Nevertheless, there are another group of persons who think these crypto coins are a new modality for committing fraud and disguise Ponsi's scheme. In this ponence, we will deep in the advantages and disadvantages of using virtual cash and a personal opinion will be added.