Disrupting active exploitation of on-premises SharePoint vulnerabilities
Microsoft has observed two named Chinese nation-state actors, Linen Typhoon and Violet Typhoon, exploiting vulnerabilities targeting internet-facing SharePoint servers.
Microsoft Defender
Microsoft Defender helps prevent, detect, and respond to attacks across devices, identities, apps, email, data, workloads, and clouds. Explore threat intelligence, capabilities, and real-world guidance to help you get more out of Defender.
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Microsoft Sentinel data lake: Unify signals, cut costs, and power agentic AI
We’re evolving our industry-leading Security Incidents and Event Management solution (SIEM), Microsoft Sentinel, to include a modern, cost-effective data lake. -
Transparency on Microsoft Defender for Office 365 email security effectiveness
Microsoft believes in transparently sharing performance data from Microsoft Defender for Office 365, and other ecosystem providers, to help customers evaluate email security solutions and make decisions to layer for defense in depth. -
Microsoft is named a Leader in the 2025 Gartner® Magic Quadrant™ for Endpoint Protection Platforms
We are honored to be recognized once again as a Leader in the 2025 Gartner® Magic Quadrant™ for Endpoint Protection Platforms—our sixth consecutive time. Prevent threats with Microsoft Defender
The Microsoft Defender family offers comprehensive threat prevention, detection, and response capabilities for everyone—from individuals looking to protect their family to the world’s largest enterprises.
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Protecting customers from Octo Tempest attacks across multiple industries
To help protect and inform customers, Microsoft highlights protection coverage across the Microsoft Defender security ecosystem to protect against threat actors like Octo Tempest. -
Forrester names Microsoft a Leader in the 2025 Zero Trust Platforms Wave™ report
Employing a Zero Trust strategy is an effective way to modernize security infrastructure to protect against ever evolving security challenges. -
Learn how to build an AI-powered, unified SOC in new Microsoft e-book
Read Coordinated Defense: Building an AI-powered, unified SOC, the new e-book on how organizations can unify security operations to better meet the challenges of today’s cyberthreat landscape. -
Planning your move to Microsoft Defender portal for all Microsoft Sentinel customers
Microsoft is transitioning Microsoft Sentinel into the Microsoft Defender portal to create a unified security operations experience. Retain Microsoft Security Experts
Microsoft Security Experts are now available to strengthen your team with managed security services. Learn how to defend against threats with security experts.
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Jasper Sleet: North Korean remote IT workers’ evolving tactics to infiltrate organizations
Since 2024, Microsoft Threat Intelligence has observed remote IT workers deployed by North Korea leveraging AI to improve the scale and sophistication of their operations, steal data, and generate revenue for the North Korean government. -
Microsoft is named a Leader in The Forrester Wave™: Security Analytics Platforms, 2025
Microsoft is proud to be named a Leader in The Forrester Wave™: Security Analytics Platforms, Q2 2025—which we believe reflects our deep investment in innovation and commitment to support SOC’s critical mission. -
How Microsoft Defender for Endpoint is redefining endpoint security
Learn why many CISOs prefer Microsoft Defender for Endpoint for comprehensive cyberthreat protection across devices and platforms. -
Discover how automatic attack disruption protects critical assets while ensuring business continuity
To help security teams protect critical assets while ensuring business continuity, Microsoft Defender developed automatic attack disruption: a built-in self-defense capability.
