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Exposure managementIntermediate

Attack Surface Management

Attack surface management identifies and tracks the systems, services, identities, data paths, and external dependencies that an attacker could reach or influence.

Framework mapping

MITRE ATT&CK® Enterprise mapping

Catalog v19.2

Editorial mapping of an inherited BMC article to related Enterprise ATT&CK behavior, control, evidence, architecture, or risk context. Mapping roles state the relationship and do not assert equivalence unless labeled direct.

What it means

The attack surface changes as organizations deploy cloud resources, domains, applications, vendors, remote access, and temporary environments. Discovery must be connected to ownership and remediation.

Why it matters

Unknown and unnecessary exposure cannot be governed effectively, even when individual systems are well configured.

Practical focus

  • Discover external and internal exposure continuously
  • Map assets to owners and business purpose
  • Remove unused services, domains, and accounts
  • Prioritize exploitable paths to important assets

Common mistakes

  • Treating a one-time inventory as current
  • Measuring only internet-facing IP addresses
  • Finding exposure without assigning remediation ownership

Certification relevance

This subject appears in or supports the following certification bodies of knowledge:

ISC2 CISSPCompTIA Security+ISC2 CCSP

Authoritative sources