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A platform category that continuously discovers, inventories, and monitors an organization's internet-facing assets from an attacker's perspective. EASM tools find forgotten subdomains, exposed cloud storage, leaked credentials, dangling DNS records, and shadow IT services that the organization may not know exist. They provide outside-in visibility without requiring agents or network access.
Organizations cannot defend assets they do not know about. Security engineers use EASM to maintain an accurate asset inventory. Penetration testers use EASM findings as reconnaissance input. CISOs rely on EASM data to understand their true external exposure. This category is growing rapidly as attack surfaces expand with cloud adoption and remote work.
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A platform category that continuously discovers, inventories, and monitors an organization's internet-facing assets from an attacker's perspective. EASM tools find forgotten subdomains, exposed cloud storage, leaked credentials, dangling DNS records, and shadow IT services that the organization may not know exist. They provide outside-in visibility without requiring agents or network access.
Organizations cannot defend assets they do not know about. Security engineers use EASM to maintain an accurate asset inventory. Penetration testers use EASM findings as reconnaissance input. CISOs rely on EASM data to understand their true external exposure. This category is growing rapidly as attack surfaces expand with cloud adoption and remote work.
Cybersecurity professionals who work with External Attack Surface Management include Security Engineer, Penetration Tester, Chief Information Security Officer. These roles apply External Attack Surface Management knowledge within the Security Products & Platforms domain.
Definitions are original explanations written for career development purposes. For authoritative technical definitions, refer to NIST, ISO, or the relevant standards body.
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