Like any get-rich-quick scheme, bitcoin scams thrive on the gullibility of its victims. Just because it's a digital currency doesn't mean you can acquire wealth quickly.
The best way to protect ourselves from Scammers is educate ourselves. Do your part as an investor do a lot of research about the team, about the product. Ask some suggestions, looks for some reviews. It's better to waste your time to a true and legit project than to waste your time to a scam project.