In order to reduced this kind of problem in the cmc. Don't let our self to be a victim of the crypto crimes happening in the crypto ecosystem, first thing to do is make a background search about the same project before making appointment about it and we have never keep or save our crypto coins or tokens on any exchange platforms, withdraw everything into your personal crypto wallets. We need to be extra careful and lastly, not every coin in the crypto are good and favorable for us so only trust those have great potentiality like the Aci coin and many more.