In the third article of our “Big Data & Issues & Opportunities” series ( we look at the impact of anonymisation and pseudonymisation in a personal data protection context as well as the use of such techniques to protect non-personal data. It introduces and criticises the dichotomy between the legal and technical definition of the concepts. The article notably examines whether anonymisation can allow falling outside of the scope of the GDPR, and if not how it can help comply with GDPR principles and obligations.


The series of articles has been made possible by the LeMO Project (, of which Bird & Bird LLP is a partner. The LeMO project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement no. 770038.