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UK ICO, Anonymisation guidance (k-anonymity)

3 records were read from this source, dated 28 Mar 2025 to 15 Oct 2026.

Last checked 15 Oct 2026

What was read from it

Records read from this source
Record	Kind	As stated	Dated
Details that identify together are coarsened and measured	De-identification rule	In tables, postcodes are cut to their first part (US ZIP codes to three digits, or 000…	15 Oct 2026
A person reads records picked at random	De-identification rule	Rules read every record; a person reads a random sample of the rewritten ones. With…	28 Mar 2025
An independent provider tests and certifies before each transfer	De-identification rule	Before a buyer receives anything, a de-identification provider you choose (never the…	5 Oct 2026

Figures it feeds