Overview
- A widespread Microsoft infrastructure fault knocked out Outlook, Teams and Copilot for thousands of users and organizations across dozens of countries.
- Microsoft tried isolated restarts of the affected infrastructure but said those attempts did not restore service and that engineers are continuing to monitor system performance.
- Crowdsourced outage tracker Downdetector recorded reports from 74 countries and said Outlook complaints surged to more than two thousand times normal levels during the spike.
- Critical services were forced to use manual procedures: Immigration New Zealand paused visa processing and Unity Health Toronto declared a code grey while saying direct patient care continued.
- Officials say there is no confirmed cyberattack and point to a likely update‑related systems fault similar to a past CrowdStrike incident, and Microsoft’s ongoing status updates will determine recovery timing and final cause.