Build secure and stay secure with new innovations for devs
Overview
Your security shouldn’t be a replay
Detection isn’t enough. Microsoft Defender coordinates protection across endpoints, identity, email, apps, and cloud—preventing, disrupting, and continuously improving defense.
- Integrate protection across your digital estate with a living security fabric—connecting signals, coordinating response across domains, and continuously strengthening as threats evolve.
- Stop high-confidence threats at the control layer—automatically containing breaches, preventing lateral movement, and reducing impact in real time, without relying on brittle playbooks or waiting for human approval.
- Scale decisions with agents embedded in your workflows—bringing cross-domain context to every signal, continuously triaging, prioritizing, and driving response so teams move from backlog to action in real time.
PRODUCTS
Explore Microsoft Defender
Microsoft Defender offers comprehensive threat prevention, detection, and response capabilities.
Endpoint Security
Gain comprehensive protection across all devices and platforms for unmatched, cross-domain visibility across your organization.
Identity Security
Prevent, detect, and respond to advanced identity threats across your identity fabric.
Email & Collaboration Security
Safeguard your email and collaboration tools from phishing, and disrupt advanced cyberthreats, such as business email compromise.
SaaS Security
Modernize how you secure apps and generative AI systems, elevate your security posture, and defend against software as service (SaaS)-based cyberattacks.
Cloud Security
Start protecting your hybrid and multicloud environments with unified security across the full application lifecycle, from code to runtime.
Vulnerability Management
Reduce risk with continuous vulnerability assessment, risk-based prioritization, and remediation.
Microsoft 365 Business Premium
Help defend your business against cyberthreats with Defender for Business and Defender for Office 365 included in Microsoft 365 Business Premium.
Microsoft Defender Suite for Business Premium
Add-on unified, affordable, AI-powered threat protection to your Microsoft 365 Business Premium subscription.
Microsoft Defender for Business
Get Enterprise-grade protection and vulnerability management for your Windows, macOS, iOS, and Android™ devices.
Microsoft Defender for Office 365
Safeguard your email and collaboration tools from phishing, and disrupt advanced cyberthreats, such as business email compromise.
Defender for individuals
Professional-grade, always-on protection for you and your family’s data and devices.1
Key Statistics
The Total Economic Impact™ of deploying Microsoft Defender
Plans and pricing
Discover pricing for Microsoft Defender
Learn about the plans and standalone options for purchasing Microsoft Defender products.
INDUSTRY RECOGNITION
Microsoft Security is a recognized industry leader
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A Leader in the IDC MarketScape for XDR
Microsoft has been named as a leader in the IDC Worldwide Extended Detection and Response Software 2025 Vendor Assessment.2 -
A Leader in Gartner® Magic Quadrant™ for Endpoint Protection Platforms
Microsoft has been named a Leader in the 2025 Gartner® Magic Quadrant™ for Endpoint Protection Platforms.3
CUSTOMER STORIES
Read what our customers are saying
RESOURCES
Discover more about Microsoft Defender
Resource library
See what’s new in cyberthreat protection and AI
Discover the latest trends and best practices in cyberthreat protection and AI for cybersecurity with our library of webcasts, e-books, and analyst reports.
Frequently asked questions
- Microsoft Defender is a comprehensive threat protection solution designed to protect individuals, businesses, and enterprises from malicious cyberthreats. Its primary purpose is to prevent, detect, and respond to attacks across devices, identities, applications, email, data, workloads, and cloud environments.
Key features include:
- Threat Prevention and Detection: Advanced protection against malware, ransomware, phishing, and other cyberattacks.
- Extended Detection and Response (XDR): Unified security across endpoints, identities, email, and apps for integrated protection.
- Cloud Security: Helps identify misconfigurations and protect workloads in multicloud and hybrid environments.
- Endpoint Protection: Enterprise-grade security for devices, including automated investigation and remediation.
- Integration with Zero Trust Principles: Verifies every request and reduces attack surfaces.
- Cross-Platform Support: Available on Windows, macOS, Android, and iOS for individuals and families.
- Microsoft Defender products operate as a coordinated system that connects posture, protection, and detection and response. Signals from endpoints, identity, email, apps, and cloud are correlated to uncover exposure, identify risks early, and continuously reduce your attack surface. When threats occur, Defender moves beyond detection—disrupting attacks across domains, containing impact, and strengthening defenses over time through shared intelligence and automation.
- No. Many organizations start with endpoint protection to establish a strong security baseline and enable Defender’s predictive threat protection as a post-breach line of defense. As you expand into identity, email, apps, and cloud, Defender connects these layers—uncovering more attack paths and enabling coordinated attack disruption. Each additional workload adds context and coverage, strengthening your posture and increasing how effectively threats are prevented, contained, and remediated.
- Many security solutions provide strong protection within individual domains, but operate in silos. Microsoft Defender is built to work across your entire environment—connecting signals from endpoints, identity, email, apps, and cloud. This enables earlier threat prevention, coordinated attack disruption across domains, and continuous improvement of your security posture—reducing reliance on manual response and disconnected tools.
- Microsoft Defender is available as both standalone products and as part of broader Microsoft security offerings, including Microsoft 365 plans. This flexible approach allows you to start where you need and expand over time. As you adopt more Defender capabilities, integrated licensing delivers greater value—reducing the need for multiple point solutions and lowering overall cost while strengthening protection across your environment. See plans and pricing
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- [1]A Microsoft 365 Family, Personal, or Premium subscription is required. Note that Microsoft Defender is not available in certain regions.
- [2]IDC MarketScape: Worldwide Extended Detection and Response Software 2025 Vendor Assessment, doc. #US52997325e, September 2025.
- [3]Gartner, Magic Quadrant for Endpoint Protection Platforms, Evgeny Mirolyubov, Deepak Mishra, Franz Hinner. July 14, 2025.
Gartner is a registered trademark and service mark and Magic Quadrant is a registered trademark of Gartner, Inc. and/or its affiliates in the U.S. and internationally and are used herein with permission. All rights reserved.
This graphic was published by Gartner, Inc. as part of a larger research document and should be evaluated in the context of the entire document. The Gartner document is available upon request from.
Gartner does not endorse any vendor, product or service depicted in its research publications, and does not advise technology users to select only those vendors with the highest ratings or other designation. Gartner research publications consist of the opinions of Gartner’s research organization and should not be construed as statements of fact. Gartner disclaims all warranties, expressed or implied, with respect to this research, including any warranties of merchantability or fitness for a particular purpose.
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