Term Kind Topic What it is
Key-Custodian Separation Token Vault Separation, Split-Custody Pseudonymisation pattern Pseudonymisation Keeping the mapping or key that re-identifies pseudonymised data in a system with a different access path from the data itself - so a breach of the analytical store yields behaviour without people.
Pseudonymisation practice Pseudonymisation Replacing identifying fields with a reference so records cannot be attributed to a person without separately held additional information.
Quasi-Identifier Set Indirect Identifiers, Re-identification Vector concept Pseudonymisation The combination of attributes that singles out an individual even after direct identifiers are removed - which is why deleting names and ids does not anonymise a dataset, and why free text and behavioural hist…
Re-Identification Risk concept Pseudonymisation The probability that pseudonymised data can be linked back to individuals, which is what keeps such data within the scope of data protection law.