⚡️ Microsoft
The latest from Microsoft on Defender.
🛡️ Microsoft Defender XDR
What’s new in Microsoft Security: November 2026 • Alym Rayani
💻 Microsoft Defender for Endpoint
Now generally available: Discover local AI agents with Microsoft Defender • JoshBregman
Defending Linux in the age of AI-operated attacks • tejaskashyap
📧 Microsoft Defender for Office 365
Email threat landscape: Q3 2026 trends and insights • Microsoft Threat Intelligence, Microsoft Defender Security Research Team and Microsoft Threat Intelligence, Microsoft Defender Security Research Team
🩹 Microsoft Defender Vulnerability Management
What exploited vulnerabilities have in common: A data-driven analysis of real-world attacks • Microsoft Security Research
🕵️ Microsoft Defender Threat Intelligence
Inside a malicious Claude Code-branded extension and its persistent SSH backdoor • Microsoft Security Research
Tracking AI adoption in North Korean threat actor tradecraft • Microsoft Threat Intelligence
🌍 From the community
Hand-picked from MVPs and Defender subject-matter experts around the globe.
🛡️ Microsoft Defender XDR
How to Connect Grok Bot to Microsoft 365 Securely • Robert Crane
Defender XDR custom detection lookback and eventGroupingKind • Truls Dahlsveen
Exploring Defender XDR tenant governance • Nicola Suter
CloudKeyVaultEvents: Azure Key Vault Logs, Schema and KQL Hunting • Bert-Jan Pals
🪪 Microsoft Defender for Identity
What a Compromised Account Can See in Your Microsoft 365 Tenant • Derek Morgan and Derek M.
🧩 Microsoft Defender for Cloud Apps
A second look at AuthCodeFix (ConsentFix) • Christopher Brumm
🔭 Microsoft Sentinel
Your agents don’t have badges. Your SOC pays for it. • Mona Ghadiri
🎛️ Microsoft Unified SecOps Platform
What is ISOC in Microsoft Defender? • Nicola Suter
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🪃 Acknowledgement of Country
Defender Weekly is written between Hamburg and Melbourne. Part of this work is created on Wurundjeri land, and we acknowledge the traditional owners of country throughout Australia, recognising their continuing connection to land, water and community. We pay our respect to them and their cultures and to elders both past and present.