Microsoft Defender External Attack Surface Management
Gain insights into vulnerabilities, risks, and exposures for web-based resources.
Gain visibility into your external attack surface
Microsoft Defender External Attack Surface Management defines your organization’s unique internet-exposed attack surface and discovers unknown resources to proactively manage your security posture.
Global attack surface discovery technology finds, analyzes, and categorizes external-facing resources as they appear
Dynamic inventory includes external assets across multiple cloud environments, including unknown resources like shadow IT
Deep insight into assets uncovers vulnerabilities and identifies emerging risks
Visibility into your external attack surface enhances Microsoft Defender for end-to-end cloud security
Eliminate external security gaps
View your organization's web applications, dependencies, and web infrastructure through a single pane of glass with a dynamic record system. Gain enhanced visibility to enable security and IT teams to identify previously unknown resources, prioritize risk, and eliminate threats.
Extend security beyond the firewall
View your rapidly changing global attack surface in real time with complete visibility into your organization’s internet-exposed resources. A simple, searchable inventory provides network teams, security defenders, and incident responders with verified insights into vulnerabilities, risks, and exposures from hardware to individual application components.
Understand your security posture
Gain a holistic view of your security posture to develop best practices and make informed decisions about security control investments and remediation with a dynamic inventory of external resources across the internet and multiple cloud environments.
Comprehensive security and compliance, built in
Microsoft invests more than USD1 billion annually on cybersecurity research and development.
We employ more than 3,500 security experts who are dedicated to data security and privacy.
Microsoft Defender External Attack Surface Management pricing
Identify all exposed resources across your attack surface. Pricing is specific to your environment and charged on an asset-per-day basis. Purchase Microsoft Defender External Attack Surface Management through the Azure portal or a Microsoft sales representative.
Get started with an Azure free account
After your credit, move to pay as you go to keep building with the same free services. Pay only if you use more than your free monthly amounts.