That's the reason why we are the one who has a responsibility to keep safe our password in bitcointalk account and email account, don't make do the same password in your email account in bitcointalk account or even other accounts. Recently issues that having a phishing link in bitcointalk that fooled people and that was probably the cause when you log in a wrong website.
***-SNIP-
d) Fake ICOs: Many require to create a new account"any jobs related to username and password" and add bitcointalk information "People usually use the same password for all accounts."
Plus traditional methods of hacking accounts" hacking emails, secret Question,...."
Exactly, maybe one of the reasons those ICO intended a scam to their participants.
Or those signing in airdrops also be careful on that.