各位師長同仁、同學大家好： 微軟（Microsoft）旗下的 Microsoft 365 於台灣時間 2026年11月13日凌晨 爆發大規模全球當機事件，造成全球多地企業與辦公生態短暫癱瘓。 事件重點摘要 • 發生時間：大約始於美東時間11月12日下午1點（台灣時間13日凌晨1點左右）。 • 主要受影響服務： • Outlook（電子郵件收發與登入異常，美東通報一度破13萬件） • Microsoft Teams（無法傳送訊息與通話） • Exchange Online、SharePoint Online、OneDrive、Microsoft 365 Copilot 與 Defender XDR • 連帶波及服務：依賴微軟底層連接器的外部 AI 工具（如 OpenAI 的部分功能、Anthropic 的 Claude 連接器等）也出現異常。 • 當機原因： • 經微軟初步調查，並非外部駭客發動 DDoS 攻擊。 • 而是部分伺服器在自動健康檢查中未能過關被系統剔除，導致剩餘基礎設施無法負荷而引發連鎖超載。 • 處理進度： • 微軟已緊急暫停部署與設定變更，並重啟受影響伺服器、調整全球流量。 • 官方管理中心針對此事件發布了代號 EX1550543 與 MO1550821 的事故追蹤，部分地區服務已陸續恢復穩定。 參考資料來源：Yahoo、自由電子報、鏈新聞 ABMedia、CMoney投資網誌、壹蘋果新聞網、Threads Best Regards, 明志科技大學 圖書資訊處 電算中心服務櫃臺 Tel：02-29089899 ext：2270 ------------------------------------------------------------------------------------------------------------------------ [Microsoft 365 Service Outage Announcement] Several Microsoft 365 services experienced a large-scale global outage from November 12th to 13th, 2026. Hello, teachers, colleagues and students: Microsoft 365 experienced a massive global outage starting in the early hours of November 13, 2026 (Taiwan Time), temporarily disrupting business operations and workplace productivity worldwide. Incident Summary • Start Time: The outage began around 1:00 PM EST on November 12 (approximately 1:00 AM on November 13, Taiwan Time). • Major Affected Services: • Outlook: Users faced email delivery failures and login issues, with outage reports peaking at over 130,000 in the US alone. • Microsoft Teams: Messaging and calling features were disrupted. • Other Core Platforms: Exchange Online, SharePoint Online, OneDrive, Microsoft 365 Copilot, and Defender XDR were also impacted. • Third-Party Ripple Effects: External AI tools relying on Microsoft connectors (such as certain OpenAI features and Anthropic's Claude connectors) experienced service disruptions. • Root Cause: • Microsoft's preliminary investigation confirmed the incident was not caused by an external DDoS cyberattack. • Instead, a subset of servers failed automated health checks and were removed from service, causing cascading overload across the remaining infrastructure. • Mitigation & Status: • Microsoft halted ongoing deployments and configuration changes, rebooted affected servers, and rerouted global traffic to restore stability. • The issue is being tracked in the Microsoft 365 Admin Center under incident IDs EX1550543 and MO1550821, with services gradually returning to normal across affected regions. References: Yahoo, Liberty Times, ChainNews, ABMedia, CMoney Investment Blog, Apple Daily, Threads Best Regards, Ming Chi University of Technology Office of Library and Information Services Computer Center Service Counter Tel: 02-29089899 ext: 2270