Pseudonymisation
Replacing identifying details with codes, while keeping a separate key that could reverse it. It reduces risk and is good practice before using data with AI, but pseudonymised data is still personal data under UK GDPR.
Related terms
Processing data so people can no longer be identified, by any means reasonably likely to be used. Truly anonymous data…
Data classificationLabelling information by sensitivity, such as public, internal, confidential and restricted, so people know what can g…
Data labellingAdding the correct answers or categories to raw data so it can be used for supervised learning or evaluation, often do…
Data leakageSensitive information ending up somewhere it should not, such as confidential documents pasted into a consumer AI tool…
Data minimisationThe principle of using only the personal data you actually need for the purpose. In practice: strip names and irreleva…
Data processing agreementThe contract between an organisation and a supplier that processes personal data on its behalf, setting out what the s…
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