The Court of Justice is the institution that interprets European Union law, and its rulings are binding for national and European courts and authorities. The Court has delivered judgments in various fields, such as competition, consumer protection, data protection, cybersecurity, journalism, the right to information, data access, freedom of expression, and good administration, which indirectly influence the use of the internet.

Political advertising is a field that affects not only individual behaviours but also societies as a whole. The use of new technologies, profiling, automated decision processes, access to data are key elements of political advertising. The article discusses the legislative and judicial safeguards for the protection of fundamental rights, at European and Romanian level.