The problem is that many times unscrupulous people take advantage and build facades to swindle people, is the case for example of some pyramids that even move by chains of whatsapp. The proponents of bitcoin argue that no organization or individual can control bitcoin and the network remains secure even if it can not be trusted by all its users. In any case, the security firms warn against the possibility of theft of the code to any user or computer attacks against the exchange offices. Hackers design programs for that theft. Kaspersky analysts disclosed the identification of the CryptoShuffler Trojan, for example, designed to change the addresses of cryptocurrency portfolios of users in the clipboard of the infected device. Since the operations performed can not be overridden and is anonymous, any data theft has no solution.