Despite the removal of text-based authentication for non-paying customers, there are still options to keep accounts secure. Under security and account access settings, users can change to “authentication app” or “security key” as their preferred method of 2FA. Authentication apps like Duo, Authy, Google Authenticator, and the 2FA authenticator built into iPhones send a notification or generate a token that will grant access to the Twitter account after typing in a six-digit code. Security keys require an extra step to access an account, and are a hardware-based option that confirms identity by plugging into a computer or connecting wirelessly. Brands include Yubikey, Thetis, and more.
