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Microsoft Defender

About Microsoft Defender

Microsoft Defender is a security product that coordinates protection across endpoints, identity, email, apps, and cloud. It offers threat prevention, detection, and response capabilities. It includes an integrated security operations center (ISOC) that combines SIEM and threat protection. It can stop high-confidence threats at the control layer by containing breaches automatically.

Products

  • Endpoint Security: Provides protection across devices and platforms with cross-domain visibility.
  • Identity Security: Prevents, detects, and responds to identity threats across an identity fabric.
  • Email & Collaboration Security: Safeguards email and collaboration tools from phishing and other cyberthreats such as business email compromise.
  • SaaS Security: Secures apps and generative AI systems and defends against SaaS-based cyberattacks.
  • Cloud Security: Provides unified security for hybrid and multicloud environments from code to runtime.
  • Vulnerability Management: Performs continuous vulnerability assessment, risk-based prioritization, and remediation.

Used for

  • Safeguarding email and collaboration tools from phishing
  • Protecting hybrid and multicloud environments across the application lifecycle
  • Assessing and remediating vulnerabilities
  • Securing apps and generative AI systems
  • Detecting and responding to identity threats

Who it is for

  • Businesses, including those using Microsoft 365 Business Premium
  • Individuals and families protecting personal data and devices

From Microsoft Defender's own website, read 2026-10-23. How we build listings.

How to evaluate Endpoint Security & EDR

This is how the CIOPages Research Team evaluates this category. It is not an assessment of Microsoft Defender. It comes from our Endpoint Detection & Response (EDR/XDR) buyer guide.

25%
Prevention & Detection Efficacy
Pre-execution and behavioral prevention, fileless and living-off-the-land detection, ransomware rollback, credential-theft detection, and breadth of MITRE ATT&CK technique coverage proven in independent and ATT&CK evaluations — not just the vendor’s own benchmark
18%
Investigation & Threat Hunting
Real-time endpoint search across the fleet, raw-telemetry retention and query language, process-tree and attack-timeline visualization, IOC and behavioral hunting, remote-shell live forensics, and how much of the triage an AI assistant can credibly take off the analyst
17%
Response & Remediation
Automated containment and network isolation, one-click and policy-driven response, ransomware and malicious-change rollback, host remediation without reimaging, and the granularity of response authority you can safely delegate to automation versus a human
15%
XDR Correlation & Telemetry Breadth
Native correlation across endpoint, identity, email, cloud-workload, and network signal; unified incident view with attack-chain reconstruction; quality of first-party telemetry versus third-party connectors; and whether correlation genuinely reduces alert volume or just renames it
15%
Endpoint Performance & Operations
Agent CPU, memory, and I/O footprint on laptops, servers, and VDI; single-agent versus multi-module sprawl; OS and architecture coverage (Windows, macOS, Linux, ARM, legacy); deployment and update controls including staged rollout and rollback; console scalability and API depth
10%
Managed Services & Ecosystem Fit
Quality and response-authority of the vendor’s own MDR option, openness to third-party MDR and SIEM/SOAR, threat-intelligence depth and attribution, marketplace and integration breadth, and the realism of support and professional-services coverage for your geographies

CIOPages put this listing together from public sources. It’s information, not an endorsement. How we build listings. Work here? Claim this listing or .

Quick Facts

www.microsoft.com/en-us/security/business/microsoft-defender
CategoryCybersecurity
SubcategoryEndpoint Security & EDR
PricingContact sales

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