Admin of lm.put.tf, there isn’t anything special there, just an instance for friends.

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  • 29 Comments
Joined 1 year ago
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Cake day: June 21st, 2023

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  • Many password managers use a biometric factor to sign in

    The only thing this does is replace the authentication mechanism used to unlock the vault, instead of using your master password (something you know), it uses some biometric factor (something you are), although it uses your biometric data, it’s still a single factor of authentication

    This basically moves the MFA aspect to one service (your password manager) instead of having each service do their own thing

    I am not sure I understood you here. What do you mean by “instead of having each service do their own thing”? Each website using their own method of delivering OTPs?

    It also comes with the benefits of password managers - each password can be unique, high entropy, and locked behind MFA.

    I am not discrediting password managers, they have their uses, as you mention you can have unique, high entropy password on a per service basis. The only thing I am against is the password managers themselves also doubling as OTPs generators (take a look at Bitwarden Authenticator which kinda defeats the purpose of OTPs. From the perspective of OTPs it makes much more sense to use a separate application (Like Google Authenticator or Aegis Authenticator), preferably on a separate device, to generate the OTPs.


  • That’s not quite right though, there’s the factor you know (password to your vault), and the factor you have (a copy of the encrypted vault).

    That would be true for offline vaults, but for services hosted on internet I don’t think so. Assuming the victim does not use 2FA on their Bitwarden account, all an attacker needs is the victim’s credentials (email and password). Once you present the factor you know, the vault is automatically downloaded from their services.


    This is something I hadn’t thought until know, but I guess password managers might(?) change the factor type from something you know (the password in your head) to something you have (the vault). At which point, if you have 2FA enabled on other services, you are authenticating with 2 things you have, the vault and your phone.


  • Although it’s true that you are increasing the attack surface when compared to locally stored OTP keys, in the context of OTPs, it doesn’t matter. It still is doing it’s job as the second factor of authentication. The password is something you know, and the OTP is something you have (your phone/SIM card).

    I would argue it is much worse what 1Password and Bitwarden (and maybe others?) allows the users to do. Which is to have the both the password and the OTP generator inside the same vault. For all intents and purposes this becomes a single factor as both are now something you know (the password to your vault).


  • Any chance to get a guarantee on lm.put.tf ? The instance is only used by people I know to avoid trigger happy admins on larger instances that defederate for trivial reasons. There are no real “communities” there and currently there’s only 5 users with just 2 being active on the fediverse. The admin account there goes largely unused to prevent the instance from being compromised due to XSS and/or CSRF attacks,

    There is only one community for meta discussions about the instance so that other people may publicly raise issues to be discussed. Unsurprisingly, no one has posted there yet.










  • GrapheneOS uses exec spawning by default, but it’s pretty trivial to disable and it does speed things up (at a slight cost to security).

    Even with that option disabled the slow down was significant enough. Maybe the mid-range chip used in the Pixel 5 wasn’t helping, but still… Overall the phone felt significantly quicker when switching back to stock.

    I think using AOT rather than JIT compiling might be the cause of the slow installs, but I’m not sure (and I’ve not really noticed a problem myself).

    That’s it, I remember reading in their forums one of the mods(or devs?) mentioning this.