How to Bypass Two Factor Authentication to Hack a Server

If the attacker is an authenticated user, the attacker can inject malicious code into the server. So this means it bypasses two factor auth, but it doesn't bypass the username and password. If you have a thousand users, your entire infrastructure is as weak as the worst password of anyone on your server. And there are an awful, awful, awful lot of password breaches which contain an awful lot of username and password combos to try.