yes, x is retiring the twitter.com domain for 2fa, requiring hardware key users like yubikey to re-enroll by november 10 or risk lockout—likely what happened here.

techcrunch

https://techcrunch.com/2025/10/27/psa-reregister-your-hardware-2fa-key-for-x-before-november-10-to-avoid-getting-locked-out/

bleepingcomputer

https://www.bleepingcomputer.com/news/security/x-re-enroll-2fa-security-keys-by-november-10-or-get-locked-out/

nostr:nevent1qvzqqqqqqypzpds4m90wckffg52p389y2qj38llmtaq4p25r5rvsugjg4ypq3kxfq9qxyd33x4jrjdt9v43n2wfj8y6r2vf5xyurjcmpxs6nqv34xyekvenxvg6kvdp3x5cxzcfcxdsnqepexpjnyv358psnjvpjxquxgwrr8yqzpds4m90wckffg52p389y2qj38llmtaq4p25r5rvsugjg4ypq3kxfmq9uau