A root-cause analysis for this issue has been performed and is now available at: https://cdn.auth0.com/website/incident-20231030.pdf
Services has been restored. A root cause analysis (RCA) will be posted here within 14 days. We sincerely apologize for the impact this had on your and your users.
Our Engineering team has identified the issue and is monitoring the situation. Errors have subsided and the impact has been mitigated.
We have identified an increase in error rates which impacted authentication flows in our US-3 Public Cloud environment. Our Engineering team is reviewing this issue.