De-anonymization, also referred to as data re-identification, cross-references anonymized information with other available data in order to identify a person, group, or transaction.
What does de anonymizing mean?
(transitive) To remove the anonymity from; to make personally identifying.
Is de-anonymization legal?
Legal protections of data in the United States
Existing privacy regulations typically protect information that has been modified, so that the data is deemed anonymized, or de-identified. For financial information, the Federal Trade Commission permits its circulation if it is de-identified and aggregated.
Is anonymization reversible?
Anonymization renders data permanently anonymous; the process cannot be reversed to re-identify individuals.