Codename MDASH helps teams discover and remediate complex vulnerabilities

Codename MDASH is a multi-model agentic scanning system designed to discover, validate, and help remediate software vulnerabilities across complex environments. MDASH orchestrates a panel of specialized AI agents that reason through proprietary code and systems, helping security teams surface elusive vulnerabilities quickly and systematically. For example, when security teams use MDASH to scan a complex application, it can identify and validate a previously undetected vulnerability in the underlying code and systems, and route it into Microsoft Defender workflows and engineering pipelines for remediation. This closed loop connects discovery, validation, and remediation across the Microsoft stack. Sign up to follow codename MDASH and join the private preview to surface and validate hard-to-find vulnerabilities with multi-model AI.

Microsoft Defender extends endpoint protection to local AI agents

Microsoft Defender now discovers more than 25 types of local AI agents and Model Context Protocol (MCP) servers across managed Windows and macOS devices. Defender also protects at runtime: if a developer using a popular coding agent like GitHub Copilot Command-Line Interface (CLI) or Claude Code is targeted by a prompt injection attempts, Defender detects and blocks it before the malicious action executes. From there, security teams can investigate agent exposure across their environment with Advanced Hunting. These capabilities are now in preview.

Microsoft Entra Backup and Recovery restores critical identity data

Microsoft Entra Backup and Recovery is now generally available, delivering Microsoft-managed, always-on backups native to your environment that are protected from deletion or modification. Security teams gain clear visibility into what changed across their tenant and can back up core directory objects, compare and restore to previous timestamps, and configure Conditional Access policies to protect against permanent deletion. Together, these capabilities protect your tenant, helping you minimize downtime and recover quickly from accidental changes and security compromises. Strengthen identity resilience with rapid recovery capabilities in Microsoft Entra.

Microsoft Defender protects open-source relational databases on AWS RDS

Microsoft Defender for Cloud now extends database threat protection to open-source relational databases on Amazon Web Services (AWS) Relational Database Service (RDS). Now generally available, built-in threat detection identifies anomalous access patterns and brute-force attempts, while automated sensitive data discovery helps teams understand where high-risk data resides. These insights, combined with integrated investigation across Microsoft Defender, help teams prioritize and respond to database risks more effectively. Detect threats and discover sensitive data across Azure and AWS with Microsoft Defender.

Greater flexibility over data security insights with Microsoft Purview customizable reports

Microsoft Purview customizable reports, now generally available in Data Security Posture Management (DSPM), give teams greater control and flexibility to tailor reporting views, analyze trends, and quickly surface the insights that enable faster, more informed decisions. Choose from out-of-the-box reports or create custom reports tailored to your organization’s specific needs, with easy options to export and share insights across teams and stakeholders. For example, security teams can create role-specific reports that highlight high-risk data exposure trends to guide policy decisions. Learn how to customize reporting experiences to uncover your critical data security insights.

Broader visibility with expanded multi-cloud coverage in Defender for Cloud

Microsoft Defender for Cloud is expanding multicloud coverage and visibility across AWS and Google Cloud, adding support for approximately 90 additional resource types and more than 200 new security recommendations. Security teams can better understand their attack surface with broader visibility across cloud-native applications, identities, data services, and workloads. Across multicloud environments, teams can better assess security posture and prioritize remediation based on exposure context, compliance posture, and business criticality to reduce risk more effectively. Gain broader visibility and prioritize risk across multicloud environments with Defender for Cloud.

Prioritize risk with unified identity risk score

A new unified identity risk score combines signals from across Microsoft Security into a single, explainable measure of an identity’s risk. It brings together behavior, access patterns, and threat intelligence for all related accounts, sessions, and applications to provide a complete view of risk. The moment an identity acts suspiciously, the score helps your team cut through the noise, prioritize what’s urgent, and can automatically trigger Conditional Access policies to enforce protection at the point of access. Prioritize identity risk and enforce protection in real time with the new unified identity risk score.

Security innovations purpose built for developers

To help developers secure code, agents, and models while giving security teams consistent visibility and control from development through runtime, Microsoft is integrating security into the tools and platforms developers already use. Organizations can use the new security tools and capabilities announced at Microsoft Build 2026 to innovate faster and scale AI adoption without sacrificing security. Read more about the Build 2026 security announcements.

Stay In the Loop

Microsoft Security continually ships meaningful innovations across our portfolio and research-driven insights and reports for the security community. In the Loop posts are your reliable source of what’s new across Microsoft Security and what it means for your security strategy. Check back for the next drop.

To learn more about Microsoft Security solutions, visit our website. Bookmark the Security blog to keep up with our expert coverage on security matters. Also, follow us on LinkedIn (Microsoft Security) and X (@MSFTSecurity) for the latest news and updates on cybersecurity.

The post ​​What’s new in Microsoft Security: June 2026 appeared first on Microsoft Security Blog.

Microsoft Purview visibility now extends to Anthropic’s Claude

Security and compliance teams can now detect and investigate Claude usage alongside other cloud applications in their broader AI ecosystem. The new Claude Compliance API for Microsoft Purview delivers centralized visibility and oversight for Claude Enterprise activity enabling Microsoft Purview to provide insights on Claude interactions and audit log signals. This integration will provide visibility across Claude Enterprise, extending the Microsoft Purview experience and helping your teams protect sensitive data across your AI estate.  

New data security posture management experience in Microsoft Purview

The new Microsoft Purview Data Security Posture Management (DSPM) experience is now generally available. This solution unifies and streamlines DSPM across scenarios, from discovery to protection, all the way to remediation, allowing teams to investigate risks and take actions on the same workflow. The new experience delivers goal-oriented flows, deeper remediation, expanded reporting, and third-party visibility. Your teams can efficiently discover sensitive data, assess risk, and take action at scale.

Microsoft Purview Data Security Investigations extends investigative depth with custom examinations

Microsoft Purview Data Security Investigations now includes optical character recognition (OCR) and custom examination capabilities to extend investigative depth. OCR extracts text from images, bringing previously inaccessible visual content into scope for AI-powered deep content analysis. In addition to existing examination types that identify credentials, risk, and personally identifiable data, and help inform mitigation, investigators can define their own analysis with custom examination, enabling more tailored and flexible investigations based on their unique needs. 

Microsoft Entra ID Account recovery securely restores account access

Microsoft Entra ID Account recovery is an advanced authentication recovery mechanism that enables users to regain access to their organizational accounts when they’ve lost access to all registered authentication methods. Unlike traditional password reset capabilities, Account recovery focuses on identity verification and trust re-establishment prior to replacement of authentication methods rather than simple credential recovery.

Windows 365 for Agents delivers a secure AI agent execution environment

Windows 365 for Agents, now expanding in public preview, and Microsoft 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, using shared organizational policies and identity to govern agent behavior and access. Windows 365 for Agents defines where an agent executes the work, providing Cloud PCs that enable agents to operate their own desktops and applications within a fully managed and auditable environment. Read our blog for more details.

Stay In the Loop

Microsoft Security continually ships meaningful innovations across our portfolio and research-driven insights and reports for the security community. In the Loop posts are your reliable source of what’s new across Microsoft Security and what it means for your security strategy. Check back for the next drop and connect with us at Microsoft Build, June 2-3, 2026, in San Francisco, to hear directly from Microsoft Security experts and learn more about today’s releases.

To learn more about Microsoft Security solutions, visit our website. Bookmark the Security blog to keep up with our expert coverage on security matters. Also, follow us on LinkedIn (Microsoft Security) and X (@MSFTSecurity) for the latest news and updates on cybersecurity.

The post What’s new in Microsoft Security: May 2026 appeared first on Microsoft Security Blog.

At Microsoft, security innovations are purpose-built to help every organization protect end-to-end with the speed and scale of AI. Our vision is simple: security should be ambient and autonomous, just like the AI it protects.

In a world where AI agents can act autonomously to take action, access data, and interact across systems, every organization should have the confidence that their security posture can scale and keep pace with their AI investments. Microsoft is focused on helping organizations gain visibility into what their agents are doing, governance over what they’re allowed to do, and protection against emerging threats. With an AI-first, end-to-end security platform grounded in Zero Trust for AI, fueled by more than 100 trillion daily threat signals¹, and shaped by the Secure Future Initiative, security and IT teams can harden their security posture with protection that is continuous, intelligent, and built for the agentic era.

In the Loop is a new series from Microsoft Security that delivers timely news and updates to the global security community. Today’s edition spotlights the latest capabilities designed to help security and IT teams secure their AI agents, secure their foundations, and defend against threats in real time with the powerful combination of agents and experts.

New Microsoft Defender capabilities in Agent 365 tooling gateway

The Agent 365 tooling gateway gives security teams the visibility and control they need to detect and respond to threats that target agentic workflows. New Microsoft Defender capabilities, now available in preview, enable security teams to detect, block and investigate anomalous behavior of their agents. Near real-time protection leverages webhooks to evaluate the actions an AI agent attempts to detect and block malicious or risky activities before they’re executed. Read more and get started.

AI-powered Defender and GitHub solution helps protect from code to runtime

Microsoft Defender for Cloud integration with GitHub Advanced Security, now generally available, provides unified security visibility across the development lifecycle. This integration automatically maps code changes to production environments, prioritizes security alerts based on real runtime context, and enables coordinated remediation workflows between development and security teams. Teams can track vulnerabilities from source code to deployed applications, focus on the security issues that affect production workloads, and take advantage of AI-powered remediation tools to speed resolution.² Get started today and watch the video.

New demo: Run a data security investigation in Microsoft Purview

Step into the role of a data security analyst and see how Microsoft Purview Data Security Investigations helps you identify investigation‑relevant data, analyze it using AI‑powered deep content analysis, and mitigate sensitive data risks—all within a single, integrated solution. Follow the end‑to‑end investigation journey in this hands‑on demo.

In the demo, you’ll learn how to:

• Proactively assess data security risk across your data estate.
• Reactively investigate data involved in security incidents, such as breaches, leaks, fraud, or bribery.
• Visualize risk using the data risk graph, which shows correlations between sensitive content, users, and activities.

Stay In the Loop

Microsoft Security continually ships meaningful innovations across our portfolio and research-driven insights and reports for the security community. In the Loop posts are your reliable source of what’s new across Microsoft Security and what it means for your security strategy. Check back for the next drop and connect with us at Microsoft Build, June 2-3, 2026 in San Francisco, to hear directly from Microsoft Security experts, learn more about today’s releases, and more.

To learn more about Microsoft Security solutions, visit our website. Bookmark the Security blog to keep up with our expert coverage on security matters. Also, follow us on LinkedIn (Microsoft Security) and X (@MSFTSecurity) for the latest news and updates on cybersecurity.

¹Microsoft Digital Defense Report 2025, Safeguarding Trust in the AI Era

²GitHub Advanced Security Integration with Microsoft Defender for Cloud, Microsoft Defender for Cloud | Microsoft Learn

The post What’s new, updated, or recently released in Microsoft Security appeared first on Microsoft Security Blog.