Since the Snowden revelations, the adoption in May 2016 of the General Data Protection Regulation and several ground-breaking judgments of the Court of Justice of the European Union, data protection and privacy are high on the agenda of policymakers, industries and the legal research community. This book sheds light on key developments where individuals' rights to data protection and privacy are at stake. It discusses the persistent transatlantic tensions around various EU-US data transfer mechanisms and EU jurisdiction claims over non-EU-based companies, both sparked by milestone court cases. Additionally, it scrutinises the expanding control or surveillance mechanisms and interconnection of databases in the areas of migration control, internal security and law enforcement, and oversight thereon. Finally, it explores current and future legal challenges related to big data and automated decision-making in the contexts of policing, pharmaceutics and advertising.