We’re rolling out an update to login verification. You’ll now be able to use a third party app for two-factor authentication instead of SMS text messages.
Starting today, you can use a security key for login verification when you sign in to .
Google: we will write the most impenetrable instructions for adding a U2F key Twitter: hold my raw water
twitter adds u2f support! ...but they force you to keep another 2fa method (authenticator or SMS) :(
You can now use a security key, such as Yubikey, for stronger two factor authentication on Twitter