Clearly I didn't misread that. It's literally the very first bullet point?

The first bullet point is "Enter an email address or phone number".

That's not MFA. MFA stands for multi-factor authentication. If the authentication only requires a code sent to an email OR phone number, that's just a single factor.

The first bullet point mentions phone number.

- Enter an email address or phone number

Thats not just email, that's also SMS.

Email OR SMS is still one factor. Its not multiple factors. How are you not getting that? Do you know what MFA means?

Even if it was Email OR password, that would still be one factor due to the OR. I do not think they are discussing in good faith.

> It's about email as single factor auth, which has become very trendy of late

I must be in the wrong bubble, I have not encountered any site that does this since the 2000s. It was a minor trend around then IIRC.

Booking does it and it frustrates me to no end.

Anthropic is the main one. Its pushing a lot of others to do the same. I literally was arguing against that 2 weeks ago and the person who was pushing it said "Claude does that. Its really slick, no password to remember".

Patreon can do that too, depending on how you sign up.

It’s not slick at all. Passwords and MFA autofill, their image codes don’t, so I have to close the browser, go to email, copy code, delete email, go to browser, paste code just to login.

The entire email login flow is completely retarded. It’s not even secure.

It’s not just slick, it is “secure” on the get go by thwarting any password stuffing attempts (if your email is not pwned already)

A lot of services just do this de-facto, where you only need an email code to reset the password. Which is equivalent to single auth with email.

Email link to reset is better, email link + another auth (usually sms) is even better.

Only in an abstract threat model sense. In real world phishing its pretty different.

Its super odd if you land on facebook.com-profilesadfg.info/login thinking its just Facebook and try to login but get a "password reset" email. Most people would be confused as they don't want to reset their password.

Having it for every login means that just missing the website URL, everything else is 100% legit.

In India, almost all websites & apps, send a OTP to either mobile or email & ask you to enter that to login. Most of them have even disabled password based login flows. Really grinds my gears.

I believe Slack popularized this back then and still do it.

Spotify just started doing this. I even have a password saved in my password manager but instead of asking me they just sent an email with a code.

Trip.com does this.

But then, email always was the only authentication. On any site, click "forgot password" and promptly they send you a reset password link. Very few sites have a challenge question.

Could be worse, I still sometimes get my password emailed in plain text by companies when I do that.