Microsoft 365 has suffered a nearly 10-hour outage affecting Outlook, Teams, SharePoint, and OneDrive, with users disputing the company's resolution claims.

Microsoft uncovered how attackers bypassed security measures and stayed hidden inside compromised mailboxes for days.

Microsoft had a cloud outage that interrupted service for Outlook, Fabric, Viva, Defender and other parts of its portfolio.

Microsoft said Thursday that it was working to resolve technical issues that were getting in the way of people sending and receiving email messages in its Outlook application.

The incident left businesses across North America staring at error messages instead of their essential work tools.

Microsoft Outlook outage hits 15,890 users Thursday due to infrastructure failure. All services restored Friday morning after ...

Microsoft experienced a major outage on January 22 that affected Outlook, Teams, 365 and more. Here's what happened.

Microsoft 365 services, including Outlook, Teams, Defender, and Purview, suffered widespread outages after a third-party networking issue disrupted enterprise access across North America.

Microsoft is investigating a widespread outage affecting several Business and Enterprise Microsoft 365 services, including ...

Microsoft is investigating a widespread outage affecting several Business and Enterprise Microsoft 365 services, including ...

Downdetector logged 12,380 reports of an outage in Microsoft’s Outlook email service as of 12:15 p.m. Thursday; 15,745 reports of an outage in the Microsoft 365 suite of cloud applications as of 12:17 ...