Outage in Cornerstone
Unable to login to the portal via Multi Factor Authentication (MFA)
Resolved MajorIncident Report
Summary AI Generated
Users with Local Authentication and MFA-enabled accounts were unable to log into the Cornerstone Production portal, encountering a blank error modal after submitting credentials with no MFA challenge presented. SSO users were unaffected. The issue lasted approximately 41 minutes (6:45–7:26 AM PT on August 17, 2026) and was resolved by restoring the MFA service, with a Root Cause Analysis expected within 7–10 business days.
User accounts configured with Local Authentication and Multi-Factor Authentication (MFA) are currently unable to log in to the Production portal.
After users enter valid credentials and submit the login request, a blank error modal is displayed and the MFA challenge is not initiated. The issue occurs across multiple browsers, including InPrivate/Incognito sessions.
That said, end users with the ability to login via SSO, can login successfully.
Our Engineering Team is actively looking into this concern, we will keep you posted of any significant updates. Thank you!
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Latest Updates ( sorted recent to last )
RESOLVED
17 days ago - at 08/17/2026 03:12PM
Following a brief monitoring period, the issue has been successfully resolved, and the service has remained stable.
The issue began at 6:45 AM PT and was resolved at 7:26 AM PT on August 17, 2026. The Root Cause Analysis (RCA) will be provided within 7–10 business days.
Thank you for your patience and understanding!
MONITORING
17 days ago - at 08/17/2026 02:37PM
Our Engineering Team has confirmed that the issue has been fixed following the restoration of the MFA service. We will continue to monitor the service for a period of time to ensure stability and reliability.
INVESTIGATING
17 days ago - at 08/17/2026 02:13PM
User accounts configured with Local Authentication and Multi-Factor Authentication (MFA) are currently unable to log in to the Production portal.
After users enter valid credentials and submit the login request, a blank error modal is displayed and the MFA challenge is not initiated. The issue occurs across multiple browsers, including InPrivate/Incognito sessions.
That said, end users with the ability to login via SSO, can login successfully.
Our Engineering Team is actively looking into this concern, we will keep you posted of any significant updates. Thank you!
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