In addition to benefits such as fun, convenience and efficiency, developments in mobile technologies also bring global privacy and surveillance challenges. The way users, organisations, and governments approach these challenges varies based on cultural norms around privacy. This project evaluates how mobile users in the Netherlands and the U.S. think about and make decisions about their privacy and personal data. The projects primary goal is to inform ways of thinking about privacy in the digital age, with an emphasis on tensions between privacy, disclosure, mobility and surveillance. Furthermore, this study highlights important implications for policy decisions regarding privacy.