A feature that was part of Twitter's core systems, which has been shut down as part of the transition to X.
X to shut down Twitter.com domain, users with security keys must re-enrol by November 10
X is ending the Twitter.com domain on November 10, requiring users to re-enrol their 2FA credentials under x.com. The announcement was made through X’s Safety account, marking a significant migration from Twitter's legacy systems.
