Larry, while I totally get where you are coming from, this does not protect us a customer. If email account gets hacked or something similar, we have no way to get access to your app. Security and preventing license stealing are good reasons, but such type of logins are not efficient and tons of top banks use a normal email+password+2FA logins. You coud enforce 2FA if you are so worried about your licenses getting stolen. Also, I was gonna ask about Team access feature and this way of login does not facilitate that. Of course bad people will always find a way to do bad things.

I used to be in banking tech back when so I know the huge security infrastructure they have. Using auth0's authentication can offer enhanced security not only with passwords but phishing, at least from our experience. Removing the need for users to remember or encrypt passwords seems to efficient - but I get some prefer passwords and email servers can be slow or wonky. We will consider offering alternatives but it helps reduce operational costs related to password management, ie, human error in password creation, usage, etc. We already handle a great deal with emails. As to team accounts, send us a note to info@eurekaa.io as we do offer those setups under one domain.