Hacker News new | past | comments | ask | show | jobs | submit login

How is that different from signin with FB or Google?

FB and Google allow the app to request the user's email. If the user is happy to provide it, then they can then tie the user's account to that email, and allow the user to log in with that email even if FB or Google cuts the application off.

Registration is open for Startup School 2019. Classes start July 22nd.

Guidelines | FAQ | Support | API | Security | Lists | Bookmarklet | Legal | Apply to YC | Contact