this post was submitted on 28 Oct 2023
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Authenticator apps on selfhosted VM (alien.top)
submitted 1 year ago by SysAdmin31@alien.top to c/main@selfhosted.forum
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Yesterday, I accidentally removed an authenticator app from my phone. Fortunately, I have another copy of the app on a different device. It made me realize how easy it is to lock myself out of my accounts. Do you think it's a good idea to create a Windows VM with an Android emulator on it and install copies of all my authenticator apps, this will not cause any security issues?

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[–] zandadoum@alien.top 2 points 1 year ago (3 children)

why not consolidate your auth apps?

i use selfhosted vaultwarden (with backups ofc) for everything, except for vaultwarden, which is protected by authy . and authy can be backed up easily

[–] SysAdmin31@alien.top 1 points 1 year ago

I backup the data but not the apps

[–] -quakeguy-@alien.top 1 points 1 year ago (1 children)

Sane MFA apps explicitly disallow their data from being backed up. That would be a massive attack vector if it was possible.

[–] guptaxpn@alien.top 1 points 1 year ago

Which is exceedingly dumb IMHO. Sure it would be a vector, but it's a vector to something that should be an additional step to username and password. Idk, I use vaultwarden and find myself worrying less about "what if?". I'm also enabling TOTP far more often now that I can easily add it to my phone and have it sync to other systems.

[–] ArrogantAnalyst@alien.top 1 points 1 year ago

Instead of authy, may I suggest Ente Auth. It works the same as authy but is open source.