Pseudonymisation techniques and best practices Recommendations on shaping technology according to data protection and privacy provisions NOVEMBER 2019 0 PSEUDONYMISATION TECHNIQUES AND BEST PRACTICES NOVEMBER 2019 ABOUT ENISA The European Union Agency for Cybersecurity (ENISA) has been working to make Europe cyber secure since 2004. ENISA works with the EU, its member states, the private sector and Europe’s citizens to develop advice and recommendations on good practice in information security. It assists EU member states in implementing relevant EU legislation and works to improve the resilience of Europe’s critical information infrastructure and networks. ENISA seeks to enhance existing expertise in EU member states by supporting the development of crossborder communities committed to improving network and information security throughout the EU. Since 2019, it has been drawing up cybersecurity certification schemes. More information about ENISA and its work can be found at www.enisa.europa.eu CONTACT For contacting the authors please use isdp@enisa.europa.eu For media enquiries about this paper, please use press@enisa.europa.eu CONTRIBUTORS Meiko Jensen (Kiel University), Cedric Lauradoux (INRIA), Konstantinos Limniotis (HDPA) EDITORS Athena Bourka (ENISA), Prokopios Drogkaris (ENISA), Ioannis Agrafiotis (ENISA) ACKNOWLEDGEMENTS We would like to thank Giuseppe D'Acquisto (Garante), Nils Gruschka (University of Oslo) and Simone Fischer-Hübner (Karlstad University) for reviewing this report and providing valuable comments. LEGAL NOTICE Notice must be taken that this publication represents the views and interpretations of ENISA, unless stated otherwise. This publication should not be construed to be a legal action of ENISA or the ENISA bodies unless adopted pursuant to the Regulation (EU) No 2019/881. This publication does not necessarily represent state-of the-art and ENISA may update it from time to time. Third-party sources are quoted as appropriate. ENISA

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