The concepts of freedom and human dignity developed over the centuries have influenced the concept of privacy, as well as the shape of its formal and legal protection. The study analyzes the impact of the Community provisions on counteracting terrorism, functioning in the European Union, on the private sphere of an individual, focusing primarily on the issues of personal data protection. In this context, one of the tasks of both Community legislation and policy has now become to alleviate the perceived antinomy between the needs to ensure the security and protection of society against terrorism, on the one hand, and to protect the individual and community against the increasingly frequent violations of privacy related to the implementation of anti-terrorist regulations. On the other hand.