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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 organisation’s unique internet-exposed attack surface and discovers unknown resources to proactively manage your security posture.

Global attack surface discovery technology finds, analyses, and categorises 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 organisation'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, prioritise risk, and eliminate threats.

Extend security beyond the firewall

View your rapidly changing global attack surface in real time with complete visibility into your organisation’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 practises 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 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

Start free. Get $200 credit to use within 30 days. While you have your credit, get free amounts of many of our most popular services, plus free amounts of 40+ other services that are always free.

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.

After 12 months, you’ll keep getting 40+ always-free services—and still pay only for what you use beyond your free monthly amounts.

Ready when you are—let's set up your Azure free account

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