So basically what title says.

Im using 2FA with google authenticator for multiple accounts. What if my phone gets stolen? Can I have some kind of backup? Or maybe sync with some self hosted service?

Bonus question: what 2FA should I use instead of google?

  • Cotillion@lemmy.world
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    1 year ago

    Use Aegis on android or 2FAS on iOS. And just backup your seed on hdd/usb stick. Dont upload on cloud.

    • SamsonSeinfelder@feddit.de
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      1 year ago

      IOS has a 2FA feature included in the key chain (passwords) settings. No need for a third party app. If you backup passwords via icloud, you are already set.

      • Cotillion@lemmy.world
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        1 year ago

        Never upload your passwords to any cloud. Always use good foss instead of proprietary software.

  • Max_Power@feddit.de
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    1 year ago

    There are many forms of 2FA. I’m guessing you mean TOTPs oh you actually wrote that, my bad lol.

    I copy the keys from Aegis to KeePassXC. KeyPassXC’s database is part of my regular backup. This way I have two apps generating the same TOTPs.

    • rambos@lemm.eeOP
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      1 year ago

      I was afraid of using keypassxc since I dont trust myself, but using it as a backup sounds like amazing solution. Thank you

    • ebits21@lemmy.ca
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      1 year ago

      Personally I recommend just using KeePassXC and a KeePass app (I use KeePassium on iPhone).

      You always have access to all your data that way. No company is monitoring you. A lot of apps make it very difficult to backup!

      My totp database is in the cloud for syncing but needs a key file I don’t keep in the cloud (and a password). My passwords are entirely separate.

  • rambos@lemm.eeOP
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    1 year ago

    Thank you all for tips. I got Aegis and backing it up to my selfhosted nextcloud. I will also keep google app in use for now, but I might get keypassxc or vaultwarden in the future

    Cheers

    • Trones@ythreektech.com
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      1 year ago

      As a user of Nextcloud, Aegis, and Vaultwarden, I can say it’s a great set of tools. I don’t know how I ever got by without Bitwarden/Vaultwarden.

  • Dave@lemmy.nz
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    1 year ago

    Aegis is a free open source TOTP 2FA app like Google Authenticator, and available on both F-Droid and Google Play. You should be able to export from Google Authenticator and import into Aegis.

    Edit: I had assumed because Aegis had an option to import from Google Authenticator that this would mean you could export in bulk. Bad assumption to make, it sounds like you can do it if you have a rooted phone but Authenticator doesn’t make it easy. I did find this that shows a method to do a handful at once: https://blog.jay2k1.com/2021/11/17/how-to-bulk-migrate-from-google-authenticator-to-aegis/

    • illi@lemm.ee
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      1 year ago

      You should be able to export from Google Authenticator and import into Aegis.

      If there is a way, I was unable to find it

      • Dave@lemmy.nz
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        1 year ago

        For one, Aegis is more well known. Aegis has 6k+ stars where FreeOTP+ has about 500. This doesn’t mean it’s better, just that people are more likely to recommend it.

        Aegis also has more features, and can import from many different authenticator apps (though as many don’t allow exports, this may require technical knowledge to get the database and feed it in). If you have root then Aegis can pull directly from the other apps.

        Aegis claims they are better than FreeOTP because the encrypt passwords at rest.

        One big difference is FreeOTP+ lets you not have to enter a pin/password to see the codes while Aegis you need to enter a pin, password, or biometric to see your codes.

        • 𝕸𝖔𝖘𝖘
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          1 year ago

          Popularity aside, you sold me on the import compatibility. FreeOTP+ can export to other FreeOTP+ installations, but I’ve had issues with exporting to other apps. I had to manually import using the secrets displayed within FreeOTP+. The encryption sold me. I will be migrating to Aegis. I haven’t heard of it until this post, and have been using FreeOTP+ sans encryption.

  • RovingFox
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    1 year ago

    I use Authenticator Pro. It allows backups for itself or for exporting to other apps.

  • s3rvant@kbin.social
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    1 year ago

    I use Aegis like several others here and then backup my codes to a Cryptomator vault which I can then sync online for cloud backup

  • Synthead@lemmy.world
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    1 year ago

    All you need is the TOTP secret, and it will generate OTPs. If you enter the secret in another TOTP app, you’ll also get OTPs. Here’s a Ruby lib that will render OTPs from a secret, for example: https://github.com/mdp/rotp

    For an Android TOTP tool, I like FreeOTP+. You can even use it for Steam OTPs.

  • m0yP@lemmy.ml
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    1 year ago

    Aegis or Ente Auth for Android. Backup your databases in your cloud of choice. Do not use Google Authenticator.

  • elgordio@kbin.social
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    1 year ago

    When enrolling with the 2FA take a screenshot of the QR code, print it and add it to wherever you keep your secure documents. The QR code is your private key, just scan it again to add a new device if you lose your original.

    Obviously you need to keep the code secure!

  • Zerush@lemmy.ml
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    1 year ago

    I prefer an authentication code, which I can save on a pendrive or, if not, a second email. I never use 2FA with a phone number, precisely because a phone is never secure and is also a privacy hole. It’s enough that they know my email, it’s not necessary that they also know my phone number.