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twitch has TOTP
Before I deleted my accounts there, I remember twitter and facebook deactivated your account for "suspicious activity" if you did not provide a phone number when making it, and the only way to reactivate it was to give them your phone number.
true. But I think that's mostly to make bots harder to create. Not as easy to get a phone number than an email address
A convenient scapegoat for getting your PII so they can sell your data at a higher value.
I had a lot of success with this: https://phonegenerator.net/
As the other commenter said, only if you give them your phone number, and only through that garbage authy that does not use standard TOTP, but some proprietary crap, specifically made for twitch.
And if you give them a phone number, which another user will also try to use in the future, then the secret used for TOTP can change in any moment, which means if you exported the secret to e.g. Aegis and deleted that tracking filled garbage that is named authy, at one point the codes just won't work anymore, and you're practically locked out. Apparently support should be able to help, but they don't give a single fuck.
you can use any TOTP app. I use bitwarden
How? How do you import the secret key to it? Are they finally showing a proper QR code when setting it up?
My account is still locked to authy, and the support pages I have read are written as if it would still work through authy for everyone.
At least that was the case for me. I removed 2FA to make the authy key invalid and activated it again. and they do the normal TOTP setup stuff during setup
That sounds good. I still have a working login somehow, but unfortunately I can't disable authy, because they want a code to do that, and they won't accept those that I have, even though it was working when I have set it up.
do you have the backup codes somewhere? Could help
I don't. Not sure whether they even provided those when I have set it up, maybe they thought that since it's stored online you can't just lose it, but I really don't remember whether there was any I could have saved. It way years ago.
Also, thinking about it, the prompt does not give an option to use a recovery code, but only to try with the phone number (which is dead by now), or contact support.
tbf, that's a bit on you. The whole point of 2FA is to prove that you are you. and if you completely killed that factor without deactivating it first or having a backup in any way, I can see the support not doing much. I'd be pissed if someone could just contact support and deactivate my 2FA method
I didn't enable it because I wanted it for security, but because twitch required it. And then I have set it up with TOTP for security while I was doing it, which does not work anymore either. Also, I did not kill the phone number, it is a public phone number that doesn't receive messages anymore. And if you blame me for not wanting to give up my own phone number, I don't know that to tell you. My privacy matters much more than caring about the possibility that someone finds out my 30 long random password and catches the SMS code from the website where they were shown.
The 2FA prompt itself tells to contact support in cases like this.
Other than that, email verification is perfectly fine for verifying that it's me. The address was never changed. Actually, as I have seen in a friend's account they are using email already as 2FA for logins, if you don't have any other way set up, maybe for other functions too.
What’s wrong with Authy?
First of all, that they are totally unnecessary for twitch to be able to provide 2fa authentication.
Other than that, their app has tracker components, all secret keys are stored in the cloud, who knows whether that's encrypted, but on your phone's storage surely not, if yours is rooted you can just view it in a file manager and copy it to a normal code generator app.
Generally they support standard TOTP code generation, but for twitch they are using some weird shit that generates 8 long numbers (instead of the standard 6), of which the middle 2 is the same so they drop one of them, and then also codes expire in third the time as it is normally.