Microsoft Defender External Attack Surface Management (EASM)
See your business the way an attacker can.
Continuous visibility beyond the firewall
See your rapidly changing, global external attack surface in real time with Defender EASM.
Discover unmanaged resources
Understand the full extent of your attack surface, including shadow IT and assets created through common, everyday business growth.
Multicloud visibility
Maintain a dynamic inventory of external resources across multiple cloud and hybrid environments.
Identify exposed weaknesses
Prioritize vulnerabilities and misconfigurations hidden in unmanaged resources, then bring the resources under management to remove those exposures.
The external attack surface management challenge
In this era of hybrid work, shadow IT creates an increasingly serious security risk. Defender EASM helps cloud security teams see unknown and unmanaged resources outside the firewall.
Capabilities
Discover, classify, and prioritize exposed weaknesses in the cloud, software as a service (SaaS), and infrastructure as a service (IaaS) resources to strengthen security posture.
Real-time inventory
Use dynamic, always-on inventory monitoring to find, analyze, and categorize external-facing resources as they appear.
Attack surface visibility
Discover external assets across multiple cloud environments, including unknown resources such as shadow IT.
Exposure detection and prioritization
Uncover vulnerabilities throughout every layer of your external attack surface, including frameworks, web pages, components, and code.
More secure management for every resource
Help protect newly discovered resources in the Microsoft Defender for Cloud portal.
Microsoft Copilot for Security is now generally available
Use natural language queries to investigate incidents with Copilot, now with integrations across the Microsoft Security suite of products.
Uncover your external attack surface
Get complete visibility into internet-exposed assets with code-level discovery through a global network that graphs online relationships.
Unified security operations platform
Secure your digital estate with the only security operations (SecOps) platform that unifies the full capabilities of extended detection and response (XDR) and security information and event management (SIEM).
Unified portal
Detect and disrupt cyberthreats in near real time and streamline investigation and response.
Microsoft Defender XDR
Achieve unified security and visibility across your clouds, platforms, and endpoints.
Microsoft Sentinel
Aggregate security data and correlate alerts from virtually any source with cloud-native SIEM.
Related products
Use best-in-class Microsoft security products to prevent and detect attacks across your organization.
Microsoft Defender for Cloud
Assist in guarding against evolving threats across multicloud and hybrid environments.
Microsoft Defender Threat Intelligence
Help protect your organization from modern adversaries with a comprehensive view of your threat exposure.
Microsoft Sentinel
See and stop threats across your entire enterprise with intelligent security analytics.
Documentation and training
Announcement blog
Learn about exciting recent developments in threat intelligence from Microsoft.
The scale and scope of cybercrime in 60 seconds
During a cyberattack, every second counts. Here’s a year’s worth of cybersecurity research condensed into one 60-second window.
Understand your attack surface as it grows and evolves
Learn how Defender EASM gives real-time visibility into your expanding, constantly changing enterprise attack surface.
Protect everything
Make your future more secure. Explore your security options today.
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