Before working on any exchange you have to have a good idea about that exchange. If you do not have a good idea about that exchange then you may face loss. You will invest money in the exchange all your life, if you do not have a good idea about that exchange  That would be the ultimate nonsense for you.  If you see anything suspicious on an exchange, be sure to discard it immediately.  Finally I have a suggestion for you to use the reputable exchange.  Such as Binance, Houbi Global, Coinbase, Bitrex etc.