Attack Surface

Primary definition

Attack Surface is the total sum of all vulnerabilities, entry points, and pathways--digital, physical, and human--that an unauthorized user can exploit to enter, steal data from, or disrupt an organization's systems. It includes everything from websites, servers, and APIs to employee devices, shadow IT, and social engineering risks.

Also known asattack vector surface · exposure surface · security perimeter · vulnerability surface
2 sources cited4 related termsReviewed Aug 10, 2026
NICCS GlossaryView source

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NICCS

Attack Surface is the total sum of all vulnerabilities, entry points, and pathways--digital, physical, and human--that an unauthorized user can exploit to enter, steal data from, or disrupt an organization's systems. It includes everything from websites, servers, and APIs to employee devices, shadow IT, and social engineering risks.

NICCS Glossary · 2024

Cite this term

Permanent URL · stable across revisions
Election Security Glossary. (2026). Attack Surface. In Election Security Glossary. Retrieved August 21, 2026, from https://electionsecurityglossary.com/glossary/attack-surface

Sources

2 cited · last checked Aug 10, 2026

01

NICCS Glossary
NICCS Glossary

High consensus

View source

02

The Cyber Glossary
The Cyber Glossary

Disputed

View source

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