Opinion: Twitter is eliminating SMS two-factor authentication for non-Blue subscribers. What to do next

Elon Musk recently announced Twitter will be limiting SMS authentication to subscribers of its new Twitter Blue subscription. After March 20, if you don’t subscribe to Twitter Blue and you do want the increased security of two-factor authentication, you’ll need to choose to authenticate through an app or hardware key. — AP

Two-factor authentication is a security option you should be using wherever you can.

It is an extra layer of protection that requires you to enter a code after you enter your login and password to log into various websites and services.