> we just had TOTP codes that 1password could auto fill for me on any device in any location
Doesn’t using your password manager as TOTP code generator reduce the number of factors back to 1?
Doesn’t using your password manager as TOTP code generator reduce the number of factors back to 1?
If the attacker got a list of passwords from a leak and your password was on it, the 2nd factor provided by the TOTP will still save you.
So, it just depends on your threat vectors. I’d rather people I support keep unique passwords alongside TOTP in a manager they’ll actually use than skip or use SMS TOTP because of a vague concern about targeted hacking of their manager.
Are there other threats that TOTP-in-password-manager can protect against that the randomized passwords don't already?
tbh the UX problem of 2fa for "I use random passwords and am not vulnerable to credential stuffing" users is a pretty big reason to stick TOTPs in your password manager.
Security is always a series of trade-offs, and 2fa brings some hideous trade-offs in many sites (well over half only allow one at a time, for example, and then you lose access permanently). TOTP with a standard like this lets you choose, rather than the site choosing for you.
Right, and if an attacker can dump password hashes they can likely dump TOTP seeds as well. With that level of database access the attacker may be able to steal all your info from the impacted service, so talking about the password may even be a distraction since all your data is already stolen.
TOTP + something like 1P moves this from happy-monday-an-infra-engineer-left-time-to-rotate-100-accounts to something you can just do periodically as you like.
The problem is that the vault file can be copied, which means this is now "something you and your attacker have". Even worse, it's not just the (probably encrypted) vault file: if your computer ever gets compromised, it is trivial to wait until you unlock the vault, at which point they can extract the now-plaintext TOTP secrets.
The way I understand it, the "something you have" factor is something which is intrinsically only a single item: either you have it, or you do not. If it can be copied, one of the copies could be compromised without you noticing - and because it's a copy you wouldn't even be able to revoke it without changing your own token too.
If that happens, nothing will save you. The malware can just grab your session tokens whenever you log in, then do whatever it pleases.
I don't know anyone who buy a second smartphoe to make it sure 2FA is on a separate device.