fraud can occur anytime and anywhere, the case for bitcoin is very common because the first bitcoin promises high profits, so opportunities like this are used by fraudsters to trick victims with high profits, so we must be very careful whenever there are programs that offering big benefits with small capital, bitcoin is the latest technology so people still don't really understand bitcoin, this kind of thing is often used by fraudsters to spread action with very good pictures when he wants to cheat you, and there are many cases of bitcoin,  but all can be prevented by understanding what we will do.