Primary definition
1. A mismatch between the internal file header and its external extension; or 2. A file name inconsistent with the content of the file (e.g., renaming a graphics file with a non-graphical extension. (SP 800-72) (NISTIR)
Also known asfile extension mismatch · header-extension mismatch · filename-content inconsistency · file signature anomaly · file type mismatch
1 sources cited4 related termsReviewed Aug 10, 2026
— The Cyber GlossaryView source
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TCG
1. A mismatch between the internal file header and its external extension; or 2. A file name inconsistent with the content of the file (e.g., renaming a graphics file with a non-graphical extension. (SP 800-72) (NISTIR)
The Cyber Glossary · 2024
Cite this term
Permanent URL · stable across revisions
Election Security Glossary. (2026). File Name Anomaly. In Election Security Glossary. Retrieved August 20, 2026, from https://electionsecurityglossary.com/glossary/file-name-anomaly
Sources
1 cited · last checked Aug 10, 2026
01
The Cyber Glossary
The Cyber Glossary
Single-source
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