#Outlook

2 articles

Microsoft 365 Global Outage Knocks Out Outlook and Teams

Microsoft 365 services including Outlook, Teams and Copilot went down worldwide for many hours starting Thursday, November 12. Microsoft blamed servers that unexpectedly became unavailable and found no sign of an attack.

November 15, 2026

🧩 CVEs

Outlook Zero-Day CVE-2026-124194 Leaks NTLM Hashes: Patch Now

November Patch Tuesday fixes an exploited Outlook zero-day: a crafted message file silently connects to an attacker's server and leaks the user's NTLMv2 hash.

November 11, 2026