• Thrydwulf@lemmy.today
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    7 months ago

    Wait, can you eli5 why multifactor authentication (MFA) (and maybe also 2-factor authentication apps) is “fuck off” levels?

    Is it privacy concerns or something bigger like more points of failure for overall security? Or smaller like not every one has/wants a smart phone?

    • cley_faye@lemmy.world
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      7 months ago

      Standard authenticator (software or hardware) are, well, standard. You can pick anything compliant and use it with any compliant service. Requiring a specific app means that you have to install yet another app, which may or may not be well made, and may or may not snoop on you, and usually will only work with one service, assuming you have a compatible device to run it to begin with.

      It’s more than an inconvenience; not insurmountable, but way more work than just having a standard thing that works perfectly well and is based on known and proven algorithms.

      • jet@hackertalks.com
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        7 months ago

        Don’t forget the dark pattern, where they need to allow push notifications to get two factor to work, but those same push notifications are now used to badger the user and create more advertisement touch points

    • FrostyPolicy@suppo.fi
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      7 months ago

      If I read it correctly the “fuck off” level refers to some proprietary app for the selected login. The other two are standard code app and yubikey.

      • the_weez@midwest.social
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        7 months ago

        This is also how I read the meme. Codes are fine, tokens are fine. Your proprietary spyware app is NOT fine (Microsoft) and I hope you get fucked.

          • mark3748@sh.itjust.works
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            7 months ago

            They offer other options for Microsoft accounts. Using it as a normal TOTP app is the same as any other Authenticator app.

            It’s most likely the number matching requirement that the other person doesn’t like, or their employer has a policy that’s annoying.

            • viking@infosec.pub
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              7 months ago

              Not the OP, but I have to use the stupid Microsoft authenticator for work, and half the time it’s hibernated and doesn’t wake up when prompted, and when I manually open the “verify login” tab, it spits out an OTP but doesn’t recheck for that 2 digit number number I have to enter.

              And the login prompt on Windows doesn’t have a “resend” button, I can merely click “I don’t have access to the authenticator app”, and then it offers me the option to… Enter a manual code (courtesy of the authenticator app) or use the authenticator app. Dumb as fuck.

              If then I opt for the authenticator app instead of the override code, there’s a ~30% chance the app will not accept the new number because it’s still expecting the former one, if you’re too quick to enter it.

              Piece of garbage.

        • ilinamorato@lemmy.world
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          7 months ago

          Microsoft login works just fine with any TOTP app, like Aegis. They just heavily push you toward their app.

          • mvmike@lemmy.ml
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            7 months ago

            Depends on how it’s configured by the company. I’ve faced in the past the situation of having to login with the company email to be able to use the MFA with a propietary app, which meant I needed to enroll into the BYOD policy and it includes remote device management.

            Ended up installing an emulator in the work laptop just for that purpose and left the company shortly after.

        • Eager Eagle@lemmy.world
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          7 months ago

          MS is fine, your average bank or broker institution though… when it’s not SMS, chances are it’s an “in-house” solution

    • Bezier@suppo.fi
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      7 months ago

      I already have an authenticator app. If some service wants to force me to install their own app for their login, they are indeed welcome to fuck off.

    • MystikIncarnate@lemmy.ca
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      7 months ago

      I can try:

      You see, a lot of really smart people worked very hard to make standardized multifactor authentication so different companies can make products that work with the MFA on different sites and services.

      The standardized versions are very cross compatible and very very secure.

      Some dumb dumbs want to be different and make you install some application on your smartphone so that you can do the exact same thing but only for their site/service. This is widely considered a bad idea, and it makes people sad. Having to install yet another app, just so you can do something that could, and should be possible with the very good existing technology that’s been created by those very smart people I mentioned before, is stupid, inconvenient, and frustrating for anyone who understands how these things work, and how secure they actually are.

      Since the app that the dumb dumbs made was created by them, for them, and they don’t share how that app functions, it can very justly cause concern with those that enjoy their privacy, since the app could be doing any number of potentially nefarious things. When you compare that with the known and trusted methods of authentication created by the smart people, it’s understandable that people would not appreciate having to use some proprietary application to do something that’s already able to be done in a safe and predictable way.

      … I think I may have used too many big words. You did ask me to eli5…