X users are experiencing account lockout issues and login loops following a mandatory two-factor authentication change implemented on October 24.
The company required users relying on passkeys or hardware security keys for two-factor authentication to re-enroll using the x.com domain. This directive stemmed from efforts to retire the older twitter.com domain, which now redirects to x.com, a change effective in May 2024. Passkeys and security keys were digitally linked to the legacy twitter.com domain, preventing their direct transfer to x.com. Users were required to manually un-enroll and subsequently re-enroll using the new x.com domain.
By November 10, we’re asking all accounts that use a security key as their two factor authentication (2FA) method to re-enroll their key to continue accessing X. You can re-enroll your existing security key, or enroll a new one.
A reminder: if you enroll a new security key, any…
— Safety (@Safety) October 24, 2025
X previously announced that accounts would be locked after November 10, unless users re-enrolled or selected an alternative two-factor authentication method. Since this deadline, numerous users have reported being locked out of their accounts. Attempts to re-enroll passkeys or security keys have reportedly resulted in error messages or persistent login loops.
This development is the latest in a series of issues for X, previously Twitter, following its acquisition by Elon Musk for $44 billion. The social media platform has undergone significant layoffs and encountered multiple controversies since the ownership transition. X did not provide a response to a request for comment regarding these account issues.
