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

Tag Archives: IP addresses

Posted in International/EU Privacy

The Ever-Expanding Concept of Personal Data

The Court of Justice of the European Union has ruled that dynamic IP addresses are capable of constituting personal data under certain circumstances, ending years of speculation about whether such essential building blocks of the Internet qualified for protection under the EU Data Protection Directive. In Patrick Breyer v Bundesrepublik Deutschland, Breyer challenged the collection and use of dynamic IP addresses from websites run by the German Federal Government. The CJEU decided that in circumstances where a third party holds information which might likely be used to identify the user of a website when put together with the dynamic IP addresses held by the provider of that website, those IP addresses constitute personal data. In this blog post, we explore the decision in Breyer, which may impact the laws and concept of personal data of Member States beyond Germany.