Cases: re-identification demonstrated¶
These are documented demonstrations, from the research literature and the public record, that “anonymous” is a claim about effort, not a property of data.
None of them is hypothetical. Strip the names, and the data still names people, given a little auxiliary information, a public database, or a capable model.
Anonymous is a claim about effort, not a property of data.
Last reviewed: 2026-07-08.