The European Union Agency for Network and Information Security (ENISA) is a centre of network and information security expertise for the EU, its member states, the private sector and EU citizens. ENISA works with these groups to develop advice and recommendations on good practice in information security. It assists 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 member states by supporting the development of cross-border communities committed to improving network and information security throughout the EU. More information about ENISA and its work can be found at www.enisa.europa.eu.
Konstantinos Limniotis (Hellenic DPA), Marit Hansen (DPA Schleswig-Holstein)
Athena Bourka (ENISA), Prokopios Drogkaris (ENISA)
We would like to thank the following experts for reviewing this report and providing valuable comments:
Giuseppe D’Acquisto (Garante), Soerin Bipat (SIG), Mathieu Cunche (INRIA), Meiko Jensen (Kiel University)
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 526/2013. 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 is not responsible for the content of the external sources including external websites referenced in this publication. This publication is intended for information purposes only. It must be accessible free of charge. Neither ENISA nor any person acting on its behalf is responsible for the use that might be made of the information contained in this publication.
© European Union Agency for Network and Information Security (ENISA), 2018
Reproduction is authorised provided the source is acknowledged.
ISBN 978-92-9204-281-3, DOI 10.2824/74954