Event Description: On November 20, 2023, a critical issue was reported concerning the Single Sign-On (SSO) mechanism using Microsoft services. Customers began experiencing difficulties in logging in, with multiple complaints received by the support team at approximately 13:00 UTC.
Root Cause: The issue was traced back to the expiration of the secret keys for our SSO application in Azure. This expiration, which likely occurred around November 18th, went unnoticed as there were no alerts or notifications generated for this event.
Steps to Resolution:
Lesson Learned and Preventive Actions: