New policy at Twitter, and it's not Elon Musk money-grubbing. Or, rather, it's not Elon musk unreasonably money-grubbing.
After March 20, if you want to protect your Twitter account with two-factor authentication, you'll have to:
- Become a Twitter Blue subscriber; or
- Choose a method other than SMS text message for your second authentication factor (the first one is your username/password combo).