• Twitter has allowed users to securely verify their accounts by receiving a text message with a verification code. This form of security, known as “two-factor authentication” or 2FA, is regarded as reliably safe for protecting sensitive data from hackers.
• Yet in a tweet on Friday night, Twitter Support said that “effective March 20, 2023, only Twitter Blue subscribers will be able to use text messages as their two-factor authentication method.”
• The company in a post on its website said that it has “seen phone-number based 2FA be used – and abused – by bad actors.”
• Non-Blue subscribers shoulder “consider using an authentication app or security key method instead” after the policy goes into effect, the company wrote.

Tagged: Twitter