PII Redaction Tool's published data
1 dataset, each built from named sources' pages and checked again on a schedule; most recent 2026-10-08.
| Dataset | Headline figure | Sources | Read |
|---|---|---|---|
| De-identification standards, what each requires | 6 standards | 6 of read | 2026-10-08 |
How we build each dataset
A dataset is planned around one question and a named set of source pages. When a page is read, the exact sentence that carries the number is saved, along with where and when we found it.
Each candidate sentence passes through review, and any rejection carries a written reason. The median and range count one figure per source, one per breakdown where a source gives several. Sources without a figure are marked rather than guessed, and regular re-reads track what moves.
De-identification standards, what each requires
6 de-identification and redaction standards were read for what they require removed or transformed, each answer quoted from the standard's own text, read 8 October 2026.
The method it accepts, by standard: several methods, by context 2 of 6, not stated 1 of 6, pseudonymisation with the key kept separately 1 of 6, reasonable measures so the data cannot be linked to a person 1 of 6, removing the listed identifiers 1 of 6 (6 standards, read 8 October 2026).
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