ABSTRACT
In this chapter we will analyse the conflict between the right to privacy and security in the use of new technologies for the fight against crime, with a special emphasis on the Brazilian scenario. Despite the fact that public security is, on the one hand, an important value, privacy, on the other, is a fundamental right recognized by most modern constitutions that needs to be equally protected. The main challenge is, therefore, to establish a balance between the need to ensure public security and the protection of individual privacy.
