I forgot one…

A user name and password counts as two factor authentication. It requires a name AND a password

@jerry
That makes the SMS code the third authentication factor, nice!

@jerry I have a name, I know my password and I am interested in logging in. That's something I have, something I know and something I am.

Three factor authentication, baby.

@deeseearr @jerry Proper authentication uses five factors: something old, something new, something borrowed, something blue, and a silver sixpence in your shoe.
@mansr @jerry
And your password should contain two named characters who have a conversation about something other than a man.

@jerry
Yeah, as you know, if you hang out in the security space long enough you will hear the most credulous BS about authentication. There really needs to be an "Alice in Wonderland" written for security.

The funniest thing for me is when a customer would send us their PGP private key thinking we would need it to unlock their logs. Uh, no.

@jerry If you spell user name with a space isn’t it 3FA then?
@jerry especially if the username is your SSN
@jerry I have two middle names so I am extra secure.
@jerry ok but my name is everywhere, how do I keep that secret?
@jerry as long as you rotate your username regularly, sounds good to me

@jerry something you have and something you know.

A post-it with the password and the fact it’s located under the keyboard.

@jerry Something you are AND something you know 😏
@jerry While the username is knowledge, the password is my dogs name and therefore counts as possession factor.
@jerry I once sent a company wide email on evening of March 31st that we would be implementing new security measure: daily randomized usernames. All users would need to log in to website to see what their username would be for the next day.
@jerry
something you have: a keyboard
something you are: human
something you know: you require access

@jerry for werewolves and vampires, your name and your bite pattern

Tooth factor authentication

@jerry hot take right here.