How to set up Twitter Multifactor Authentication
For Desktop:
Step 1
In the side menu, click More, then click Settings and privacy.
Step 2
Click on Security and account access, and then click Security.
Step 3
Click Two-factor authentication.
Step 4
There are three methods to choose from: Text message, Authentication app, or Security key.
Step 5
Once enrolled, when you log in to your account, you'll be prompted to provide the two-factor authentication method you used during your previous login, along with your password. You’ll also see the option to Choose a different two-factor authentication method. If you’d like to proceed, simply click the prompt to select a different method. Follow the onscreen instructions to finish logging in.