Στο μικροσκόπιο της Ε.Ε. το σκάνδαλο της Cambridge Analytica

Data expert Alexander Nix, CEO of Cambridge Analytica, speaks at the marketing fair 'Online Marketing Rockstars' (OMR)'in Hamburg, Germany, 3 March 2017. Photo by: Christian Charisius/picture-alliance/dpa/AP Images