This book looks at how Europe's refugee crisis has provoked different political and humanitarian responses, all similarly driven by technology. The author first explores the transformation of Europe into an increasingly militarised space, where technologies are mainly used to exercise surveillance and to distinguish between citizens and unwanted migrants. She then shifts the attention to refugees' practices of connectivity by looking at how technologies are used by refugees to communicate, perform and resist their exile. Finally, the book examines the opportunities and challenges that characterise the impact of digital social innovation in humanitarian settings. By focusing on how technologies are used to promote solidarity in crisis contexts, the volume provides an original contribution to studying the role of tech for good activism within the space of Fortress Europe. Based on interviews with refugees, digital humanitarians and social entrepreneurs, the book timely questions what Europe means today, and why dialogue is now more important than ever.