Twitter to Charge for Two-Factor Authentication (2FA) via Text Message
Only about 2.6% of Twitter users use 2FA - of them about 75% via SMS. From March, 20th on these users should pay for the feature. Twitter leaves 2FA via App as a free feature.
The numbers of how many people have active 2FA is based on Twitters Security Report from July 2022.
Twitter in a recent blog post states, that „the availability of text message 2FA for Twitter Blue may vary by country and carrier“.
You might want to set up 2FA, no matter if Blue subscriber or not, as it is a good way to secure your account.
2FA via SMS is the less secure way to do so. So instead use an App like Google Authenticator or Authy - it is the better way anyways.