A Nikkei news article reports that Microsoft 365 suffered a major worldwide outage beginning early on the 13th Japan time, leaving users unable to connect to email and disrupting business across services including Outlook, Teams, and Copilot. Microsoft said multiple servers unexpectedly went down and it had no timetable for full recovery; DownDetector logged over 300 Outlook reports in Japan and 130,000 at the US peak.