This incident is resolved. Our authentication provider mitigated the disruption caused by the upstream AWS outage, and login has been stable since. Thanks for your patience.

Our authentication provider has taken action to work around the underlying AWS issue, and login is now functioning again. We're monitoring closely to confirm stability before marking this resolved. If you had trouble logging in earlier, please retry.

We've identified the cause: our third-party authentication provider is impacted by an ongoing, widespread AWS outage. This is affecting the ability of users to register or log in. Because the root cause sits with AWS, resolution timing is largely dependent on their recovery. We're monitoring AWS status closely and will update this page as the situation develops.

We're investigating reports of users being unable to log in or authenticate. Our authentication provider appears to be affected by a wider AWS incident.