Authenticity
nounverified·updated May 9, 2026
The property of being genuine and being able to be verified and trusted; confidence in the validity of a transmission, a message, or message originator. See Authentication.
NISTIR 7298: Glossary of Key Information Security Terms, Revision 2
Senses
SANS Glossary of Security Terms
Authenticity is the validity and conformance of the original information.
National Initiative for Cybersecurity Careers and Studies (NICCS) Cybersecurity Lexicon
A property achieved through cryptographic methods of being genuine and being able to be verified and trusted, resulting in confidence in the validity of a transmission, information or a message, or sender of information or a message.
ISACA Cybersecurity Glossary
Undisputed authorship
ISO/IEC TS 5723:2022(en) Trustworthiness — Vocabulary
property that an entity is what it claims to be
Wordset Dictionary
undisputed credibility
Classifications
Entity Type
Capability72%llm-generatedllm:claude-haiku-4-5
?unassignedlast reviewed —
Sensitivity
unclassified
Information Class
unclassified
Variants
- synonym
- genuinenesslegitimacy
- plural
- Authenticities
- possessive
- Authenticity's
- pluralpossessive
- Authenticities'