Severity: Informational

​​​​What’s new in Microsoft Security: November 2026

Microsoft Security’s November 2026 updates strengthen AI agent security, least privilege, threat protection, and exposure management.

Excerpt from the primary source: Microsoft Security Blog & MSRC

Who is affected

Security professionals

What you should do

No specific action is required at this time.

Sources

We link to original and authoritative sources. Headlines and excerpts belong to their publishers.

Vendor advisory

​​​​What’s new in Microsoft Security: November 2026 Microsoft Security Blog & MSRC · microsoft.com · Nov 5, 2026 · Primary source