Are Internet protocol addresses personal data? The fight against online copyright infringement

Internet Protocol addresses [IP addresses] are central for Internet electronic communications. They individualize computers and their users to make the delivery of data packets possible. IP addresses are also often used to identify websurfers for litigation purposes. In particular, they constitute a key in the fight against online copyright infringement to identify infringers. However, it is a matter of dispute to know if IP addresses are personal data. In a review of relevant case law, the present paper seeks to identify when IP addresses are – or should be – considered as personal data. It suggests a contextual approach to the concept of personal data.