Re:Safari tries to fill username
by thaumasiotes on Friday May 28, 2021 @08:02AM
(#27314347)
> Totp and other "second factors" are thought of as things that must be stolen, or if disclosed have a very short viability time.
TOTP gets set up in the first place when the website discloses your seed to you. It's not something that can't be disclosed. Seeds get disclosed all the time; workflows are built around it.
> Biometric are things that can't be disclosed
Huh?? Biometrics are things that it's impossible to avoid disclosing. If you're ever in a police station, they are free to sample your DNA. You shed it all over the place. If you ever handle something, you just disclosed your fingerprints. If there are any pictures of you out there, your face is public information.
> sms hijacks require a lot more than simply "knowing" a phone number.
I didn't claim otherwise. The intent of my sentence above is to say that a context which involves a working hijack attack converts an SMS challenge from a second factor into a password. If your attack is working, knowing the phone number is sufficient to authenticate as the victim.
TOTP gets set up in the first place when the website discloses your seed to you. It's not something that can't be disclosed. Seeds get disclosed all the time; workflows are built around it.
> Biometric are things that can't be disclosed
Huh?? Biometrics are things that it's impossible to avoid disclosing. If you're ever in a police station, they are free to sample your DNA. You shed it all over the place. If you ever handle something, you just disclosed your fingerprints. If there are any pictures of you out there, your face is public information.
> sms hijacks require a lot more than simply "knowing" a phone number.
I didn't claim otherwise. The intent of my sentence above is to say that a context which involves a working hijack attack converts an SMS challenge from a second factor into a password. If your attack is working, knowing the phone number is sufficient to authenticate as the victim.