As long as I'm trading in a year I have yet to find a broker who exploit the profit or loss. but in the online world it is very possible to happen, because of the many brokers there any brokers are doing cheating to members. Therefore we should be careful in choosing a broker that we will use for trading. and traders who often skyrocket in the loss by many factors, it could be the trader has not had enough trading knowledge so that he suffered often loss.