Storing 2FA codes is just the beginning. Bitwarden aims to add defense in depth to authentication.
Bitwarden Authenticator is a standalone app that is available for everyone, even non-Bitwarden customers.
In its current release, Bitwarden Authenticator generates time-based one-time passwords (TOTP) for users who want to add an extra layer of 2FA security to their logins.
There is a comprehensive roadmap planned with additional functionality.
How so? They already have TOTP built-in to the app if you pay for premium, so this is just a free competitor to their own offering.
I'm guessing they're trying to make it a "gateway" to getting people on Bitwarden. Start with the TOTP app, then use the password manager, then pay for premium. Or something like that.
I'm not positive but I'm assuming they're referring to a kind of MFA where the authenticating service pushes to the client you possess rather than relying on a temporal cryptographic key. I've got a few services which work that way
That's indeed what I meant. Similar to how OKTA, battle.net, or the Microsoft authenticator works( in corporate environments).
You receive a push notification which asks if you're trying to log in and approve it, followed by a fingerprint or a pin code to confirm, rather than having to type in the code generated by your app
It doesn't get a whole lot of attention but it's the most mature open source authenticator app and one of the first ones you would find in fdroid. With that said, there's nothing really standout about it or its features, it just works.
I used to use Aegis, but after setting up my own vaultwarden, I use the normal bitwarden app/plugin on all my systems for passwords and TOTP.
The advantages are that I don't need my phone to login, the keys are synced and backuped in the encrypted vaultwarden database, which I can then handle with normal server backup tools. It still works offline, because bitwarden app caches the password.
This is IMO much more convenient and secure (in a way that loosing access to a device doesn't shut you out, and you don't need to trust third parties) then most other solutions.
Even if I hosted my own BitWarden vault, I wouldn't put my passwords and 2 factor tokens in the same place because it's eliminating the benefits that 2 factor provides if someone somehow manages to get into my vault.
2 factor came into our life because people were using same passwords everywhere. With unique passwords, which are easy with password managers, it's rarely needed.
That may have been part of the reason, but the theory behind MFA is that there are 3 primary ways to authenticate who you are: what you know (password), what you have (secure one time password generator or hardware token), and what you are (biometrics). Password managers and digital one time password generators have kind of blurred the lines between passwords and one time passwords, but you're raising your risk a bit if you put them in the same place.
With unique passwords, the attack surface just changes. Instead of attacking the passwords, attackers attack the password managers. LastPass, Okta, and Passwordstate each had breaches, and the first two are quite popular.
That doesn't mean Bitwarden is at risk (not sure if it has been targeted), it just means that attackers are finding success going after password managers, so they could go after Bitwarden. Maybe they'll sneak in an xz-style bug that'll allow attackers to steal credentials en-route, idk.
So it's a matter of good/better/best:
good - use a password manager to prevent password leaks from providing access to other accounts
better - use 2FA to prevent "password recovery" attacks; these are often targeted in nature, so there's a lot less risk here
best - use a separate 2FA from your password manager to prevent a breach from exposing all of your accounts
The overhead from using a separate 2FA app is pretty low, just make sure it encrypts your keys and you trust it (FOSS is a good indicator of trust).
There is not much difference between having two apps (password manager and authenticator app) or one app, that does both on the same device.
So, if you want more security, then you have to deal with a hardware token and never with a authenticator app. But then if you loose your token, then you have trouble.
At this moment Aegis is far superior to bitwarden auth. But it looks promising.
I really like the ability to "sideload" the icons for the codes and automatic encrypted backups to cloud storages.
I haven't been entirely happy with Bitwarden for other reasons. You can't self host and share with one other person without paying them $40/year. Their advertising is deceptive, because they say you can do both for free. But that one or the other, not both.
You also can't easily share individual passkeys outside of the app. If you want to grab a passkey, you have to export your entire vault.*
It's basically annoyance-ware.
* note that sharing passkeys is not best practice, but there are use cases.
As others have said vaultwarden is the solution here. It is free, you can manage multiple vaults, totp is free. All the platform bit warden apps & plugins work with it. Supposedly it is leaner and easier to set up. Don't know for sure because it is all I have used.
For shared passwords, I have a family vault where I put my streaming pws and such and everyone has access without having to share my personal vault.