# Digital Identity **Entity class:** Identity infrastructure concept ## Definition **Digital identity** is the set of identifiers, credentials, attributes, authenticators, devices, accounts, and claims through which a person or organization is represented and recognized in digital systems. It supports access, attribution, transactions, interoperability, and audit. ## Relevance to this collection It connects [[wiki/Entity Resolution|Entity Resolution]], [[wiki/Cross-Domain Identity|Cross-Domain Identity]], [[wiki/Identity and Relationship Analysis|Identity and Relationship Analysis]], and [[wiki/Access Control|Access Control]]. ## Relationships - **master collection:** [[collections/Terrorism, Counterterrorism, and the Intelligence Environment|Terrorism, Counterterrorism, and the Intelligence Environment]]. - **intellectual neighborhood:** [[wiki/Intellectual Neighborhood of the Counterterrorism Collection|Intellectual Neighborhood of the Counterterrorism Collection]]. ## Sources / Provenance - [NIST Special Publication 800-63-4, *Digital Identity Guidelines*, July 2025](https://pages.nist.gov/800-63-4/). **As of:** 2026-09-23