Skyhigh Security incident
Incident - Potential O365 Login Issues using reverse proxy
Affected components
Update timeline
- identified Mar 30, 2026, 04:02 PM UTC
We are investigating login failures for users accessing Office 365 through our reverse proxy services without using Single Sign-On (SSO). A Microsoft change is causing it. A fix will be rolled out soon. For assistance, please contact Skyhigh Support.
- investigating Mar 30, 2026, 04:02 PM UTC
We are investigating login failures for users accessing Office 365 through our reverse proxy services without using Single Sign-On (SSO). A Microsoft change is causing it. A fix will be rolled out soon. For assistance, please contact Skyhigh Support.
- investigating Mar 31, 2026, 02:00 PM UTC
We are investigating login failures for users accessing Office 365 through our reverse proxy services without using Single Sign-On (SSO). A Microsoft change is causing it. A fix will be rolled out soon. For assistance, please contact Skyhigh Support.
- resolved Apr 08, 2026, 06:00 AM UTC
The issue has been resolved.
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