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.
Do a lot of effort to research about the team.
Because some of ICO team members are only made to scam people some are dead and some are not true..
Read about the white paper how their product work, about their roadmap .
Get to know who you are transacting with.