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Microsoft Security @msftsecurity

Be first to know about AI, threats, and new tools. Quick hits, expert tips, and real-time security news—follow for smarter, safer ops.

Joined October 2010
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Microsoft Security
@msftsecurity
30 Sep 2025
From graph-based context to build-your-own Microsoft Security Copilot agents, we're introducing a new AI-ready security platform and innovations to empower defenders in the era of agentic AI: msft.it/6010sQNtI #MSSecure
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100 specialized AI agents, one goal: find exploitable vulnerabilities before attackers do. Meet MDASH, Microsoft Security’s multi-model agentic scanning harness. Watch Sarah Young show it in action at #MicrosoftBuild.
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Just announced at #MicrosoftBuild: NEW security capabilities that deliver real-time guidance, scale with complexity, and give teams full-lifecycle visibility. 🧵
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🔐 Purview data risk signals: Embedded in the Foundry Control Plane to detect sensitive data exposure and unsafe agent behavior. 🧵4/5
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🛡️ Defender AI model scanning: Find and fix vulnerabilities earlier with integrated security insights. Read all announcements here: msft.it/6011vb7oW🧵5/5

Microsoft Build 2026: Securing code, agents, and models across the development lifecycle | Micros...

Discover how Microsoft enables fast, secure AI development with MDASH and new security capabilities.

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500M monthly players across Xbox consoles, PC, handheld, and cloud gaming. 🎮 That’s a lot to protect, but gaming goes far beyond accounts and devices. Gaming culture runs deep, spanning players, developers, platforms, and the teams behind it all—and each brings its own security challenges. Hear from Deputy CISO Aaron Zollman on how we secure it all: msft.it/6011vnKQX
Image with Aaron Zollman's headshot that says "Deputy CISO of Gaming."

ALT Image with Aaron Zollman's headshot that says "Deputy CISO of Gaming."
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The Forrester Wave™: Workforce Identity Security Platforms, Q2 2026 highlights just how critical strong identity foundations are, especially as identity continues to be a top target for attackers. As organizations look for identity platforms that can keep up with evolving needs, we’re honored that Microsoft has been recognized as a Leader in the report. Learn more: msft.it/6019vn8Tl #IAM #MicrosoftEntra

Microsoft recognized as a Leader in The Forrester Wave™ for Workforce Identity Security Platforms |...

Microsoft has been recognized as a Leader in The Forrester Wave™: Workforce Identity Security Platforms, Q2 2026, receiving the highest scores in both the current offering and strategy categories.

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May (drop) Day is here 🙌 This month’s "In the Loop" updates are all about simplifying—across data security, identity, and AI. View the replies to see what’s NEW ⤵️
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🧵 3/4 Microsoft Entra ID Account Recovery: enables users to regain access to their organizational accounts when they've lost access to all registered authentication methods.
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🧵 4/4 Windows 365 for Agents delivers a secure AI agent execution environment: Windows 365 for Agents and Agent 365 work together to provide a consistent, secure environment to run and govern agents. Agent 365 determines the work an agent is authorized to do and Windows 365 for Agents defines where an agent executes the work. For full product details, visit: msft.it/6017vVVxv

What’s new in Microsoft Security: May 2026 | Microsoft Security Blog

Microsoft Security’s latest updates extend visibility, control, and protection across expanding ecosystems as organizations accelerate AI adoption.

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AI safety should be continuous, not a checkpoint. Announcing two new open-source tools to help engineers build safety in from the start: ➡️ RAMPART: turn red-team techniques into repeatable, CI-ready tests ➡️ Clarity: validate what you should build before writing code Bringing the focus back to the “why,” not just the “how.” Learn more: msft.it/6019vpxtS

Introducing RAMPART and Clarity: Open source tools to bring safety into Agent development workflow...

The AI systems shipping inside enterprises today are fundamentally different from the ones we were building even two years ago, because they have moved well past answering questions and into access...

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DDoS attacks are on the rise. Solving them starts with stepping back—and going deep on defense. What that looks like: ➡️ Make abnormal traffic easier to spot and harder to exploit with rate limiting, geo-fencing, and anomaly detection ➡️ Design for graceful degradation: maintain core functionality, even when systems are stressed Learn more: msft.it/6013vRHiL

Defending consumer web properties against modern DDoS attacks | Microsoft Security Blog

Learn how to protect consumer websites and defend against modern DDoS attacks with layered security, resilient architecture, and graceful service degradation.

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Project MDASH reaching #1 on the CyberGym leaderboard points to a shift in AI-driven security. A multi-model system designed and built from the ground up. It’s a strong signal of where autonomous code security is headed. msft.it/6014vuaV8
Scatter plot comparing success rates of multiple models across release dates from Dec 2024 to Jul 2025, with later releases showing higher performance levels, including leading results associated with Project MDASH.

ALT Scatter plot comparing success rates of multiple models across release dates from Dec 2024 to Jul 2025, with later releases showing higher performance levels, including leading results associated with Project MDASH.

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Keep your finger on the pulse and learn how to introduce your organization to the safe and secure world of passkeys with our World Passkey Day blog. 🫆

Learn more in our World Passkey Day blog

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We're honored to be named an Overall Leader—and Market Leader—in @kuppingercole 2026 Emerging AI SOC report. See how we’re investing in AI and automation to help SOC teams move faster, with more confidence and resilience: msft.it/6013vMRhf

​​Microsoft named an overall leader in KuppingerCole Analyst’s 2026 Emerging AI Security Operations...

Microsoft is excited to be named an Overall Leader, and the Market Leader in the Kuppinger Cole Analyst’s 2026 Emerging AI Security Operations Center (SOC) report, as we see automation and AI as core...

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📢 This just in: Microsoft Agent 365 is now available and ready to incorporate your AI agents to your workflow. Now it's easier to streamline your digital workforce and ensure it's secure and protected. Got questions? We covered some FAQs below. And if yours isn’t there, drop it in the replies 👇 Learn more: msft.it/6016vz0NI
A blue speech bubble asks about Agent 365 licensing, and a white speech bubble explains per-user SKU availability standalone or via M365 E7.

ALT A blue speech bubble asks about Agent 365 licensing, and a white speech bubble explains per-user SKU availability standalone or via M365 E7.

Two speech bubbles discussing building agents or adopting Copilot, with a recommendation to establish security guardrails using Agent 365.

ALT Two speech bubbles discussing building agents or adopting Copilot, with a recommendation to establish security guardrails using Agent 365.

A graphic with two speech bubbles on a gradient blue background, one asking "Does it work with third-party agents?" and the other responding, "Yes, it’s designed to manage both Microsoft agents and a large variety of third-party partners."

ALT A graphic with two speech bubbles on a gradient blue background, one asking "Does it work with third-party agents?" and the other responding, "Yes, it’s designed to manage both Microsoft agents and a large variety of third-party partners."

A graphic showing a blue speech bubble asking "How do you configure Agent 365?" and a white speech bubble responding with "Define policies centrally for SecOps, Entra, and Purview, then apply to users."

ALT A graphic showing a blue speech bubble asking "How do you configure Agent 365?" and a white speech bubble responding with "Define policies centrally for SecOps, Entra, and Purview, then apply to users."

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