Microsoft Agent 365 & Build 2026 MomentumAgent 365 continues expanding with stronger local agent discovery and runtime protection. Build 2026 highlighted new SDKs and registry features for secure agent development.Takeaway: Prioritize Agent Registry onboarding and Intune policies for local agents.

July Patch Tuesday & Zero-DaysRecord volume patches released with multiple zero-days addressed, including Defender elevations of privilege.Takeaway: Deploy immediately and monitor Defender offline update packages.

Sentinel Graph Tool EnhancementsPublic preview graph tools now support deeper reasoning over identities, devices, and AI agent signals.Takeaway: Test in your Sentinel workspace for faster investigations.

Non-MS Highlights (from Talkin’ Bout Infosec News)Polymarket supply chain breach and FBI Kali365 phishing warnings dominate.Takeaway: Review third-party vendor risks and phishing training for M365 tools.

AI for the Masses (from AI Security OPS)LiteLLM supply chain risks and model ablation techniques removing safety rails are key concerns.Takeaway: Audit open-source AI components and test for ablation-style jailbreaks.

* Expanded local AI agent discovery and runtime protection

* Continued Sentinel Graph tool enhancements

* July Patch Tuesday and baseline updates addressing ongoing threats

This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit www.microsoftsecurityinsights.com

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The Security Insights Show Episode 294 | Andre Keartland | The Microsoft SC-500 exam

Can AI ever be secure as the AI technology adoption is often out pacing security innovation? This is one of those episodes that we will have a ton of “highly” opinionated facts. Words of Wisdom: “If someone asks you the same question three times, trust me they know the answer” * Explore events at Microsoft * General * Microsoft Build 2026: Securing code, agents, and models across the development lifecycle | Microsoft Security Blog * AI brands as bait: How threat actors are using the AI hype in social engineering | Microsoft Security Blog * Reconstructing AI activity in investigations | Microsoft Security Blog * June 2026 Patch Tuesday – Record volume with multiple zero-days | Microsoft Security Response Center AI Security * Updating the taxonomy of failure modes in agentic AI systems | Microsoft Security Blog * Securing CI/CD in an agentic world: Claude Code Github action case | Microsoft Security Blog Agent365 * Microsoft Build 2026: Securing code, agents, and models | Microsoft Security Blog * Agent 365 Agent Registry and local agent discovery expansions | Microsoft Learn * Overview of Microsoft Agent 365 | Microsoft Learn Azure Security & Defender for Cloud News * What’s new in Defender for Cloud features (July 2026 updates) | Microsoft Learn Threat Intelligence * AI brands as bait: How threat actors are using the AI hype in social engineering | Microsoft Security Blog Microsoft Entra * What’s New in Microsoft Entra: July 2026 | Microsoft Tech Community Device Management & Protection (Intune) * What’s new in Microsoft Intune (July 2026) | Microsoft Learn Defender XDR & Sentinel * Monthly news – July 2026 | Microsoft Defender XDR Blog * Reason over Microsoft Sentinel graphs with graph tool (Preview) | Microsoft Learn * Best practices for Microsoft Sentinel | Microsoft Learn * Defender XDR + Sentinel integration guide | Microsoft Learn Copilot for Security * Microsoft Security Copilot overview | Microsoft Learn * Security Copilot agents overview | Microsoft Learn Purview – Compliance & Governance * Microsoft Purview protections for generative AI & Copilot | Microsoft Learn * Use Microsoft Purview to manage data security for Microsoft 365 Copilot | Microsoft Learn * Purview for AI agents & Agent 365 | Microsoft Learn Non Microsoft Security News * Polymarket supply chain compromise leading to theft from high-value accounts | Talkin’ Bout Infosec News * FBI urgent warning on Kali365 phishing targeting Teams/Outlook/OneDrive users | Talkin’ Bout Infosec News * Heavy summer for AI-discovered vulnerabilities and supply chain attacks | Talkin’ Bout Infosec News * GitHub bans on vindictive security researchers | Talkin’ Bout Infosec News * Anti-tech extremism and opposition to AI infrastructure projects | Talkin’ Bout Infosec News AI for the Masses * LiteLLM supply chain compromise highlighting AI system weaknesses | AI Security Ops * Model ablation techniques removing safety mechanisms | AI Security Ops * Embedding space attacks on modern AI systems | AI Security Ops * Open weight models and open source harnesses risks | AI Security Ops * Agent pentest benchmarking and AI bug bounties | AI Security Ops Featured Resources & Deep Dives * Setup & deployment guide for Microsoft Defender XDR * Advanced hunting best practices in Defender XDR * Best practices for data collection in Sentinel * Configure a secure foundation for Microsoft 365 Copilot * Security for AI solutions hub What’s New in Defender (July 2026) * What’s new in Microsoft Defender XDR | Microsoft Learn (Official Reference) * Expanded local AI agent discovery and runtime protection * Continued Sentinel Graph tool enhancements * July Patch Tuesday and baseline updates addressing ongoing threats Daily Defender Dispatch – July 9, 2026 Daily Defender Dispatch: Agent 365 Expansions, July Patch Tuesday, Sentinel Graph, and Non-MS Threats Microsoft Agent 365 & Build 2026 Momentum Agent 365 continues expanding with stronger local agent discovery and runtime protection. Build 2026 highlighted new SDKs and registry features for secure agent development. Takeaway: Prioritize Agent Registry onboarding and Intune policies for local agents. July Patch Tuesday & Zero-Days Record volume patches released with multiple zero-days addressed, including Defender elevations of privilege. Takeaway: Deploy immediately and monitor Defender offline update packages. Sentinel Graph Tool Enhancements Public preview graph tools now support deeper reasoning over identities, devices, and AI agent signals. Takeaway: Test in your Sentinel workspace for faster investigations. Non-MS Highlights (from Talkin’ Bout Infosec News)Polymarket supply chain breach and FBI Kali365 phishing warnings dominate. Takeaway: Review third-party vendor risks and phishing training for M365 tools. AI for the Masses (from AI Security OPS)LiteLLM supply chain risks and model ablation techniques removing safety rails are key concerns. Takeaway: Audit open-source AI components and test for ablation-style jailbreaks. * Expanded local AI agent discovery and runtime protection * Continued Sentinel Graph tool enhancements * July Patch Tuesday and baseline updates addressing ongoing threats This is a public episode. If you would like to discuss this with other subscribers or get access to bonus episodes, visit www.microsoftsecurityinsights.com