[littlecranky67]

NextAuth has the credentials provider to allow username/password logins [0] - I use it in a project and it works okay-ish. However I too got a weird feeling when I read what the NextAuth team really thinks about a username/password login:

> The functionality provided for credentials based authentication is intentionally limited to discourage use of passwords due to the inherent security risks associated with them and the additional complexity associated with supporting usernames and passwords

I cannot disagree more. Using 3rd party auth has a lot of issues such as data privacy (requirement of stating that in your privacy/GDPR policy if you are in the EU), increased user support request when they cannot remember which auth provider they used, or the ever growing cases in which Facebook/Google/Whatnot decide to close someones account without possibility to appeal and effectively shutting them out of your App. Or the risk that if Google/FB/Github might not like your webapp, they can disable auth for your users with the flip of a switch. Me personally, I avoid 3rd party auth for those reasons alltogether.

[0]: https://next-auth.js.org/providers/credentials

[claystraw]

Ah, thank you for the clarification and I agree! Another point is that 3rd party tools can easily deactivate profiles (we've seen enough posts on HN about being locked out of a Google account) which means users loose access to your system unless you have fallbacks in place.

It's also important to note that almost no 3rd party providers offer the ability to require 2FA as part of their flows. So if you need 2FA and similar, you'll end up with your own system again. And you'll probably use passwords, because proving that you own two things - eg email and device - is not a second factor. If someone steals your laptop (something you no longer own :D ) it's just one factor!