Glossary Item Box

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# Known Facts and Identifiers

# What are Known Facts and Identifiers?

During enrolment known facts are used to prove or verify that the user has an "account" (or data belonging to them) in the service. Outside enrolment, known facts are also used to prove a user's identity when they have forgotten their password or User ID.

Identifiers do not prove ownership – known facts do that – instead they are used to identify the user to the service.

This section looks at the role played by Known Facts in Enrolment, how Identifiers are Related to Known Facts and Where Known Facts are Stored and Processed.

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