Why wouldn’t they make sense for recovery? They’re authentication factors just like passwords.
“Second” factor means you should have multiple, not that one of them is beneath the others. And they all work just as well for authentication and recovery.
Because you’re much more likely to lose or break a hardware fob than lose a password, let alone change (lose or whatever) recovery email or phone.
Like, it would be a neat option; ideally you could set up literally anything and say what combination of factors you want to use for recovery and which to use for authentication, but it’d be a pretty big change for a tiny minority of users.
Why wouldn’t they make sense for recovery? They’re authentication factors just like passwords.
“Second” factor means you should have multiple, not that one of them is beneath the others. And they all work just as well for authentication and recovery.
Because you’re much more likely to lose or break a hardware fob than lose a password, let alone change (lose or whatever) recovery email or phone.
Like, it would be a neat option; ideally you could set up literally anything and say what combination of factors you want to use for recovery and which to use for authentication, but it’d be a pretty big change for a tiny minority of users.