MIT IS&T experienced a notice incident on January 22, 2026, lasting 19h 58m. The incident has been resolved; the full update timeline is below.
Update timeline
- investigating Jan 22, 2026, 08:18 PM UTC
Microsoft is reporting a degradation in some M365 services, including Exchange Online, Microsoft Purview, and Microsoft Defender. Microsoft will publish updates to X at https://x.com/MSFT365Status/status/2014422298506285161?ref_src=twsrc%5Egoogle%7Ctwcamp%5Eserp%7Ctwgr%5Etweet.
- identified Jan 22, 2026, 10:13 PM UTC
Microsoft has identified the issue and is applying a fix.
- resolved Jan 23, 2026, 04:16 PM UTC
Microsoft has resolved the issue.