#Twitter is stopping #SMS #2FA (for Twitter Blue customers) in favor of #TOTP and #FIDO2
https://blog.twitter.com/en_us/topics/product/2023/an-update-on-two-factor-authentication-using-sms-on-twitter

Most probably, the cost of text messages is the reason at hand.

In terms of security, this is actually a very good idea. Text messages do have their security issues. Please switch to a FIDO2 USB device as soon as possible. Only this method protects you from #phishing attacks. Well invested ~25€.

But even the less secure TOTP (authentication apps like #FreeOTP) is better than SMS.

@admin You can't register a FIDO key unless you have a working TOTP device (#Googleauthenticator, #MicrosoftAuthenticator #FreeOTP+ ..) registered

#qrcodes - curse or blessing? Both!

I recently activated #2fa for my #Mastodon account. It's not complicated and with #FreeOTP you can even avoid #Google products.

Unfortunately, it requires scanning a QR code, which is not trivial if you're #blind.

There certainly are apps that are extraordinarily good at processing QR codes, even if you don't scan them perfectly - but typically, extracting the data contained in QR codes isn't as helpful as it sounds.