- Data Protection & Privacy
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1 min read
Anonymisation and Pseudonymisation?
Pseudonymisation is processing data without expressly at that time being able to identify a particular person – essentially it is like identifying someone by a pen-name (pseudonym) or by a code name. Data is considered pseudonymous as long as the means to access the true identity of the individual is kept separately and subject to specific technical/structural measures to prevent the individual being identified or made identifiable.
Anonymised data is truly private as all identifying features (metadata) is removed making it impossible to identify a data subject. Recital 26 to the GDPR states that anonymised data is not personal data for the purposes of the GDPR:
The principles of data protection should therefore not apply to anonymous information, namely information which does not relate to an identified or identifiable natural person or to personal data rendered anonymous in such a manner that the data subject is not or no longer identifiable. 6This Regulation does not therefore concern the processing of such anonymous information, including for statistical or research purposes.
Matt is a Solicitor Advocate and Director of Legisia Legal Services. He specialises exclusively in police record deletion, DBS appeals, and regulatory defence. With over 20 years of experience, he has advised hundreds of professionals and individuals on high-stakes matters affecting careers, reputations, and legal standing. His work focuses on challenging unlawful data retention, safeguarding thresholds, and procedural breaches across UK policing and disclosure systems.
Matt is a Solicitor Advocate and Director of Legisia Legal Services. He specialises exclusively in police record deletion, DBS appeals, and regulatory defence. With over 20 years of experience, he has advised hundreds of professionals and individuals on high-stakes matters affecting careers, reputations, and legal standing. His work focuses on challenging unlawful data retention, safeguarding thresholds, and procedural breaches across UK policing and disclosure systems.
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