Last weekend, news broke that Facebook has been demanding some new users enter their email passwords in order to sign up for an account on the site. First publicized by cybersecurity specialist e-sushi on Twitter, the unnervingly phishing-like process worked like this: any user who tried to create a new account on Facebook with an email from one of a few providers (including Yandex and GMX) was directed to a page that asked them to “Confirm [Their] Email”--by entering their email password.

https://www.eff.org/deeplinks/2019/04/facebook-got-caught-phishing-friends