Azure External Attack Surface Management Skill

This skill provides expert guidance for Azure External Attack Surface Management. Covers limits & quotas, and configuration. It combines local quick-reference content with remote documentation fetching capabilities.

How to Use This Skill

IMPORTANT for Agent: Use the Category Index below to locate relevant sections. For categories with line ranges (e.g., L35-L120), use read_file with the specified lines. For categories with file links (e.g., [security.md](security.md)), use read_file on the linked reference file

IMPORTANT for Agent: If metadata.generated_at is more than 3 months old, suggest the user pull the latest version from the repository. If mcp_microsoftdocs tools are not available, suggest the user install it: Installation Guide

This skill requires network access to fetch documentation content:

Preferred: Use mcp_microsoftdocs:microsoft_docs_fetch with query string from=learn-agent-skill. Returns Markdown.
Fallback: Use fetch_webpage with query string from=learn-agent-skill&accept=text/markdown. Returns Markdown.

Category Index

Category	Lines	Description
Limits & Quotas	L30-L34	Details on Defender EASM billable asset limits, how usage is measured, and how billing and quotas work for external attack surface management.
Configuration	L35-L47	Configuring Defender EASM asset filters (domains, hosts, IPs, ASNs, SSL certs, pages, contacts), using inventory filters/saved queries, and connecting EASM data to Log Analytics/ADX.

Limits & Quotas

Topic	URL
Understand Defender EASM billable asset limits and billing	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/understanding-billable-assets

Configuration

Topic	URL
Configure ASN asset filters in Defender EASM	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/asn-asset-filters
Configure contact asset filters in Defender EASM	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/contact-asset-filters
Configure Defender EASM data connections to Log Analytics and ADX	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/data-connections
Configure domain asset filters in Defender EASM	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/domain-asset-filters
Configure host asset filters in Defender EASM	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/host-asset-filters
Use Defender EASM inventory filters and saved queries	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/inventory-filters
Configure IP address asset filters in Defender EASM	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/ip-address-asset-filters
Configure IP block asset filters in Defender EASM	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/ip-block-asset-filters
Configure page asset filters in Defender EASM	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/page-asset-filters
Configure SSL certificate asset filters in Defender EASM	https://learn.microsoft.com/en-us/azure/external-attack-surface-management/ssl-certificate-asset-filters

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