Elon Musk, the owner of X (formerly known as Twitter), has issued a warning to users to update their legacy Twitter security settings or risk being locked out of their accounts starting November 10.
The notice comes amid ongoing cybersecurity adjustments at X, which have followed large-scale staff cuts since Musk’s acquisition of the platform.
While several online platforms such as PayPal and WordPress continue to face rising cybersecurity threats, X users have been urged to review their two-factor authentication (2FA) configurations to ensure continued access.
The X Safety Team, in a post dated October 24, announced:
“After November 10, if you haven’t re-enrolled a security key, your account will be locked until you: re-enroll; choose a different 2FA method; or elect not to use 2FA.”
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The message initially caused confusion among users who were uncertain about which authentication methods were affected.
To clarify, the platform later explained that the update only applies to users who rely on security keys such as Yubikeys and passkeys as their 2FA method. Other methods like authenticator apps remain unaffected.
“This change is not related to any security concern and only impacts Yubikeys and passkeys,” X said in a follow-up post. “Security keys enrolled as a 2FA method are currently tied to the twitter.com domain. Re-enrolling your security key will associate it with x.com, allowing us to retire the Twitter domain.”
The update forms part of X’s ongoing transition from the Twitter brand to its new x.com domain, aligning Musk’s rebranding vision with improved user authentication processes.