Martingala opciones binarias
Although they may be a legitimate financial product with many licenced firms trading in them, binary options are speculative, high risk products that are almost impossible to predict, even for professionals. There are groups of scammers who use binary options to steal your money.
If you agree, they direct you to a website with a login, account details and the trading platform. They put your money into the account and demonstrate a number of successful trades to encourage you to invest greater sums of money.