Article Title: X to Phase Out Twitter Domain: Users Must Re-enroll 2FA Keys by November 10
Article Text:
In a significant move marking its departure from the Twitter brand, social media platform X has announced the discontinuation of support for the old Twitter.com domain in its two-factor authentication (2FA) processes. Effective November 10, 2025, users who utilize security keys linked to the former domain must re-enroll their devices to maintain uninterrupted access to their accounts.
This initiative is part of X’s comprehensive rebranding and security enhancement strategy under the leadership of Elon Musk. The focus is on accounts employing hardware security keys for 2FA—a method renowned for its robustness against phishing attempts and unauthorized access.
In an official blog post, X stated:
By November 10, we’re asking all accounts that use a security key as their two-factor authentication method to re-enroll their key to continue accessing X.
Users have the option to re-enroll existing security keys or register new ones through the platform’s settings. It’s important to note that enrolling a new key will deactivate any previously registered keys unless they are also updated.
This change stems from X’s transition to the x.com domain following its 2023 rebranding. The objective is to streamline authentication processes and eliminate vulnerabilities associated with outdated infrastructure.
Security experts commend this proactive measure, highlighting that lingering ties to legacy domains could expose users to risks such as domain spoofing, especially in an era of escalating cyber threats.
The transition does present certain challenges. Users who fail to re-enroll by the November 10 deadline will face account lockouts. To regain access, they will need to update their security keys, switch to alternative 2FA methods like authenticator apps or SMS codes, or, as a last resort, disable 2FA entirely. However, X strongly advises against disabling 2FA due to the increased security risks it entails.
Re-enrolling security keys ensures compatibility with X’s updated security protocols. Hardware keys, such as YubiKeys, continue to be regarded as the gold standard for 2FA, offering resistance to phishing and unauthorized access attempts.
X recommends that users maintain backups of multiple security keys to prevent single points of failure, a practice particularly crucial for high-profile accounts susceptible to targeted attacks.
This phase-out aligns with broader industry trends toward domain-agnostic authentication methods. As cybercriminals increasingly exploit outdated branding for social engineering attacks, X’s update serves to bolster user safety. With a user base exceeding 500 million, the platform urges immediate action to prevent potential disruptions.
