Outage in Microsoft 365
Some users may be unable to access or protect content using Azure Rights Management (ARM) across Microsoft 365 services
Resolved Minor
October 12, 2026 - Started about 8 hours ago
- Lasted about 5 hours
Incident Report
Summary AI Generated
Azure Rights Management (ARM) experienced an outage lasting approximately 5.4 hours on October 12, 2026, beginning at 7:00 AM UTC, caused by unhealthy service components responsible for processing ARM requests. The incident prevented some users from encrypting, decrypting, or opening protected files and emails across Microsoft 365 services, including Microsoft Purview, SharePoint Online, Power BI, and Microsoft 365 Copilot Chat. Microsoft resolved the issue by redirecting traffic away from the affected infrastructure, after which service recovery was observed across all affected regions.
Title: Some users may be unable to access or protect content using Azure Rights Management (ARM) across Microsoft 365 services
User impact: Users may be unable to access or protect content using ARM across Microsoft 365 services.
More info: Impact may prevent users from encrypting or decrypting protected content, including files and email messages, across Microsoft 365 services that rely on ARM.
Current status: We’ve identified that some service components responsible for processing ARM requests are in an unhealthy state. We’re attempting to restart the affected components to mitigate impact. We’re seeing early signs of service recovery and are investigating the root cause while evaluating whether additional mitigation actions are required.
Scope of impact: Some users attempting to encrypt or decrypt content using Microsoft 365 services that rely on ARM may be impacted.
Next update by: Monday, October 12, 2026, at 11:30 AM UTC
User impact: Users may be unable to access or protect content using ARM across Microsoft 365 services.
More info: Impact may prevent users from encrypting or decrypting protected content, including files and email messages, across Microsoft 365 services that rely on ARM.
Current status: We’ve identified that some service components responsible for processing ARM requests are in an unhealthy state. We’re attempting to restart the affected components to mitigate impact. We’re seeing early signs of service recovery and are investigating the root cause while evaluating whether additional mitigation actions are required.
Scope of impact: Some users attempting to encrypt or decrypt content using Microsoft 365 services that rely on ARM may be impacted.
Next update by: Monday, October 12, 2026, at 11:30 AM UTC
Components affected
Microsoft 365 appsTrusted by 1,000+ teams
The Status Page Aggregator with Early Outage Detection
Stop finding out about outages from your users. Monitor 6,320+ cloud services and get alerted the second something breaks.
Latest Updates ( sorted recent to last )
about 5 hours ago - at 10/12/2026 10:42AM
Title: Some users may be unable to access or protect content using Azure Rights Management (ARM) across Microsoft 365 services
User impact: Users may be unable to access or protect content using ARM across Microsoft 365 services.
More info: Impact may prevent users from encrypting, decrypting, or opening protected files and email messages across Microsoft 365 services that rely on ARM. This includes protection capabilities in Microsoft Purview, encrypted documents, protected file uploads and downloads in SharePoint Online, related Power BI and dependent service functionality, and publishing agents or adding skills to existing agents in Microsoft 365 Copilot Chat.
Current status: We’ve redirected traffic away from affected infrastructure to allow the unhealthy service components to recover. Following this action, we’ve observed service recovery across all affected regions. We’re monitoring service health to confirm that recovery remains stable while we continue investigating the root cause.
Scope of impact: Some users attempting to encrypt, decrypt, open, upload, or download protected content across Microsoft 365 services that rely on ARM, including Microsoft Purview and Power BI, or publish agents or add skills to existing agents in Microsoft 365 Copilot Chat, may be impacted.
Start time: Monday, October 12, 2026, at 7:00 AM UTC
Next update by: Monday, October 12, 2026, at 12:30 PM UTC
about 6 hours ago - at 10/12/2026 09:16AM
Title: Some users may be unable to access or protect content using Azure Rights Management (ARM) across Microsoft 365 services
User impact: Users may be unable to access or protect content using ARM across Microsoft 365 services.
More info: Impact may prevent users from encrypting or decrypting protected content, including files and email messages, across Microsoft 365 services that rely on ARM.
Current status: We’ve identified that some service components responsible for processing ARM requests are in an unhealthy state. We’re attempting to restart the affected components to mitigate impact. We’re seeing early signs of service recovery and are investigating the root cause while evaluating whether additional mitigation actions are required.
Scope of impact: Some users attempting to encrypt or decrypt content using Microsoft 365 services that rely on ARM may be impacted.
Next update by: Monday, October 12, 2026, at 11:30 AM UTC
Latest Microsoft 365 outages
Admins are unable to access the Exchange admin center (EAC) - about 7 hours ago
The Status Page Aggregator with Early Outage Detection
With IsDown, you can monitor all your critical services' official status pages from one centralized dashboard and receive instant alerts the moment an outage is detected. Say goodbye to constantly checking multiple sites for updates and stay ahead of outages with IsDown.
Start free trialNo credit card required · Cancel anytime · 6320 services available
Integrations with
