Comparing the benefits of pseudonymisation and anonymisation under the GDPR

Mike Hintze and Khaled El Emam
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Mike Hintze: Partner, Hintze Law PLLC, and Senior Fellow, Future of Privacy Forum, USA
Khaled El Emam: CHEO Research Institute, Canada

Journal of Data Protection & Privacy, 2018, vol. 2, issue 2, 145-158

Abstract: Many organisations are trying to obtain more value from their data to improve their products and services, offer new ones and optimise their own internal operations. For example, more chief data officers, or similar roles, are being created to drive such data-enabled transitions. With the General Data Protection Regulation (GDPR) in place, these organisations need to determine the lawful basis for such activities. De-identification techniques, such as pseudonymisation and anonymisation, can play an important role in facilitating such secondary uses and disclosures of data. In regard to de-identification, the GDPR introduces nuances that have not previously been seen, recognising the existence of different levels of de-identification and explicitly adding references to pseudonymisation as an intermediate form of de-identification. This paper explores the nuances introduced by the GDPR, compares the benefits of the different levels of de-identification found in the regulation, and provides practical guidance for using de-identification as a tool for addressing different GDPR compliance obligations.

Keywords: anonymisation; pseudonymisation; de-identification; masking; secondary uses (search for similar items in EconPapers)
JEL-codes: K2 (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:aza:jdpp00:y:2018:v:2:i:2:p:145-158

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