Elon Musk’s X (formerly Twitter) is officially saying goodbye to Twitter.com and users have a critical deadline to act before risking a lockout. The company is urging all users who rely on security keys or passkeys for login to update their credentials by November 10, 2025, as part of its final transition to X.com.

This is not looking to just make a branding statement, but a potential shift in security measures affecting millions globally.

Why X Is Retiring Twitter.com and What It Means for Users

As part of X’s full rebranding, all login credentials linked to Twitter.com are being transferred to X.com.

Credentials attached to Twitter.com will stop functioning once security keys which are specific to a domain, retire and users will be blocked from accessing their accounts without timely re-enrollment.

X clarified in its notice:

“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.”

After the deadline, any account that hasn’t been updated will be locked until users either re-enroll their key, switch to another 2FA method or disable it altogether, though disabling 2FA isn’t recommended for security reasons.

Who Needs to Act Before November 10

Only users logging in with hardware security keys, like YubiKeys, are going to be affected. Users with authentication apps, backup codes or logging in with passwords will not be affected.

Following the no-SMS authentication rule for non-premium users, a lot of users switched to hardware keys in 2023. If this applies to you, confirm your login method to avoid being locked out after the recent change.

How to Secure Your Account and Stay Logged In

Follow these steps to ensure uninterrupted access:

1. Go to Settings & Privacy → Security and Account Access → Two-Factor Authentication.

2. Check whether your login method uses a hardware key or passkey.

3. Re-enroll your security key under the new X.com domain.

4. Update all saved credentials across browsers, password managers and apps.

5. Test your login once updated to confirm smooth access.

Although X claims users will receive an automatic prompt, manual re-enrollment lets you take control and prevent any unexpected interruptions.

Farewell to Twitter.com — The End of an Era

This update is the last strip of Twitter.com, thus, closing the last chapter of the platform’s original narrative.

Musk’s 2022 acquisition set the stage and the transformation of the blue bird to the black “X” suggests a profound change in the app’s purpose, shifting away from a microblogging site to an “everything app” integrating payments, media and AI tools.

Moving entirely to X.com is both a symbolic and technical milestone in that transformation.

Don’t Risk Losing Access or Your Handle

Failing to update won’t delete your account, but it can lock you out indefinitely.

And since X has been reclaiming inactive or inaccessible usernames for resale, neglecting this update could mean losing your handle permanently.

For creators, brands and professionals, that’s more than an inconvenient change, it’s a branding disaster. Users must take necessary steps to protect their profiles at the earliest.

Conclusion

The retirement of Twitter.com is not just about the domain it is more about security and continuity.

What users of hardware keys need to do is re-enroll under X.com before November 10, 2025, or they risk a lockout.

In Musk’s digital overhaul, this move finalizes X’s transformation, from Twitter’s legacy into a future ready global platform.

If you haven’t checked your login yet, do it now, before access becomes history.