The first conference in a transatlantic dialogue on privacy and cyber security, held in November 2017 at HIIG in Berlin, brought together an eminent transdisciplinary group of experts from academia, administration, business and civil society from both sides of the Atlantic. It was carried by the hope to find a deeper understanding of the issues at stake and common approaches allowing the internet and digitalisation in general, to develop in the interest of all, across the Atlantic and perhaps worldwide. This edited volume presents the outcome of this first conference, both to the interested public and for the preparation of the second conference in October 2018 in New York.