In a blog post, Twitter’s product security team said, “We occasionally hear from people whose accounts have been compromised by email phishing schemes or a breach of password data elsewhere on the web. Today we’re introducing a new security feature to better protect your Twitter account: login verification.”
Essentially, it’s just a form of two-factor authentication. Users will need to register a verified phone number and a confirmed email address. To get going, you can go to your account settings page and add a phone; every time you sign in to Twitter, you’ll get a 6-digit code via SMS on your phone.
Users can generate temporary passwords when logging in from other devices or apps, which affords some additional security.