How to Set Up Two-Factor Authentication on Twitter

Twitter recently announced that they will stop allowing the use of SMS-based two-factor authentication for their service, except for Twitter Blue subscribers. This $8 a month service offers a blue checkmark (though not actual verification), the ability to edit tweets, and more. This change will take place on March 30, 2023, and, if you are using SMS-based two-factor authentication (2FA) at that time, Twitter will turn it off, rendering your account less secure.

SMS-based 2FA is not very secure – SMSes can be intercepted, and SIM cloning can allow people to pretend they have your phone – and the other methods available are much more robust. But Twitter’s decision to turn off SMS-based 2FA is dangerous, and their choice to allow it to be used for a price is misguided.

If you have SMS-based 2FA on Twitter, you should change this to use an authenticator app, and there’s one built into macOS, iOS, and iPadOS. Here’s how to do this on Mac, iPhone, or iPad.

Read the rest of the article on The Mac Security Blog.