NewsPublished 29 Oct 2026

IDC MarketScape names Microsoft a Leader in the 2026 Worldwide Modern Endpoint Security for Enterprises Vendor Assessment

Source Microsoft Security Blog

Description

Microsoft has been named a Leader in the 2026 IDC MarketScape for Worldwide Modern Endpoint Security for Enterprises. The recognition highlights Microsoft Defender's autonomous attack disruption and predictive shielding capabilities that contain ransomware and identity attacks within minutes. The platform integrates AI-driven detection and response across endpoints, identities, email, and cloud, enabling near real-time containment of threats. The solution includes agentic AI through Security Copilot, improving alert accuracy and reducing analyst workload. Microsoft Defender's unified portal correlates signals from multiple sources into single incidents, facilitating rapid and effective response. The platform also supports securing local AI agents used by employees, providing visibility and control over their activity. This integrated approach addresses the increasing speed and complexity of ransomware and AI-driven attacks observed between 2025 and 2026.

Impact

The threat landscape is characterized by a significant increase in ransomware detonations (over 15% rise between 2025 and 2026) and the use of AI-driven attack techniques that accelerate attack progression from initial access to damage. Microsoft Defender's autonomous attack disruption capability can contain compromised devices and users in near real-time, preventing lateral movement and further damage. This rapid containment reduces the window of opportunity for attackers to execute ransomware encryption or misuse stolen credentials. The integration of agentic AI improves detection accuracy and reduces analyst response time, enhancing overall security posture. The platform's ability to secure local AI agents addresses emerging risks associated with AI tools used by employees, mitigating potential misuse or compromise.

Defensive guidance

Microsoft Defender provides built-in autonomous attack disruption and predictive shielding that act in near real-time to contain ransomware and identity attacks. The platform is generally available and actively used in enterprise environments, offering integrated AI-driven detection and response capabilities. Organizations should deploy and maintain Microsoft Defender with its latest features enabled, including Security Copilot for agentic AI assistance. Leveraging the unified Defender portal and integrating with Microsoft Sentinel enhances visibility and incident response. No additional action is required beyond adopting and properly configuring these solutions, as the vendor manages ongoing improvements and updates. Organizations should ensure their endpoint security solutions are up to date to benefit from these capabilities.

Summary

The IDC MarketScape named Microsoft a Leader in the 2026 assessment for modern endpoint security, emphasizing Microsoft Defender's capabilities in autonomous attack disruption and predictive shielding. Defender uses AI and signals from endpoints, identities, email, and cloud to detect multistage attacks like ransomware in progress and automatically contain compromised devices and users to prevent lateral movement. The platform's unified incident management correlates diverse signals into single incidents, enhancing situational awareness and response efficiency. Agentic AI via Security Copilot is generally available, delivering measurable improvements in alert accuracy and analyst efficiency. Defender also provides extensive telemetry and integrates with Microsoft Sentinel for broad environmental visibility. Additionally, Defender secures local AI agents by providing discovery, visibility, and protection capabilities. This comprehensive security foundation is designed to counter increasingly rapid and sophisticated ransomware and AI-driven attacks, which have increased by over 15% in ransomware detonations against enterprises from 2025 to 2026.

References

microsoft.com/en-us/security/blog/2026/10/29/idc-marketscape-names-microsoft-a-leader-in-the-2026-worldwide-modern-endpoint-security-for-enterprises-vendor-assessment/ (opens in a new tab)

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AI analysisMachine-generated, updated 29 Oct 2026, 17:38 UTC

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