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Data Pseudonymization Basics

Reduce direct identifiers

Pseudonymizing data means swapping direct identifiers for pseudo-IDs kept separately with access controls, enabling some linkability for analytics while reducing exposure; document re-ID rules and retention.

Replace IDs

Swap direct identifiers with pseudo-IDs; keep mapping secure.

Control Access

Limit who can re-link; log and expire mappings.

Document

State purposes, retention, and re-ID rules.

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