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HL Chronicle of Data Protection Privacy & Information Security News & Trends

Tag Archives: linkability

Posted in International/EU Privacy

European Regulators Raise the Bar on Anonymization Techniques

The Article 29 Working Party’s new opinion on anonymization techniques provides a useful primer on randomization and generalization (i.e., data aggregation) techniques used to anonymize data sets. The opinion analyzes each technique based on three ways that data can be re-identified: the ability to single out individuals after the anonymization technique has been applied; the linkability of the anonymized data sets to other data sets; and finally the ability of the data sets to resist inference attacks after application of the anonymization technique. Organizations depending on anonymization for compliance with the Data Protection Directive would be well advised to review their anonymization processes to determine if they comport with the standards set out in the opinion.