Microsoft 365 Outage Takes Outlook and Teams Offline Worldwide
Source 보안뉴스
At a glance
On the 12th, Microsoft 365, the company's cloud service for work, went down in a large outage. Users around the world could not properly use Outlook email, the Teams messenger, or the Copilot AI assistant. Earlier that morning, Teams had a separate outage.
Key points
The outage started around 1:26 p.m. Eastern Time.
Microsoft warned that Exchange Online, Teams, SharePoint Online, Copilot, and Defender XDR might not connect.
At first Microsoft blamed infrastructure overload in several regions, but later said several servers had stopped unexpectedly, leaving the remaining equipment overloaded.
Microsoft halted all deployments, moved traffic across its global infrastructure, and is restarting the stopped servers.
Why it matters
Many businesses rely on one cloud service for email, messaging, and documents, so an outage at one provider can halt work across the whole company.
Original article
마이크로소프트 365 장애로 아웃룩·팀즈 세계 곳곳서 먹통
보안뉴스 · Nov 13, 2026, 9:56 AM GMT+9 · boannews.com
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