“As Virgil guided Dante through Hell, so too does Ferguson guide us through the world of digital informants and the inadequate legal regime that enables it. Your Data Will Be Used Against You is essential and a bright flashing warning sign articulating the vulnerability we all live with, the inability of the current legal system to protect us, and the loaded gun this system represents to would-be tyrants whether they wear a badge or make the laws.” —Matthew Guariglia, author of Police and the Empire City: Race and the Origins of Modern Policing in New York

“If you have a phone and do not live entirely off the grid in the wild, then you have to read this book. Just about everything you do can be potentially used as evidence in our rapidly digitizing courts, Andrew Guthrie Ferguson details in this compelling, important and highly readable new book.” —Brandon Garrett, Duke University School of Law

“Andrew G. Ferguson has again delivered a tour de force, reminding all of us of the dangers of the pervasive surveillance state. Worse still, it’s all become frighteningly commonplace, largely without our knowledge.” —Cyrus Farivar, author of Habeas Data: Privacy vs. the Rise of Surveillance Tech

“Andrew Ferguson has done it again. His last book, The Rise of Big Data Policing, opened our eyes to the expanding world of digital surveillance. But technology has not stood still – not hardly – and Ferguson has captured the promise but also the perils in this latest volume. The short of it is that the accumulation of all the data about all of us puts way too much power in government hands and the protections are way too insufficient. We see that daily in the news, as the government mines location, social media, and much, much more. Highly readable, incredibly educational, and urgent and attention getting, this is a must read.” —Barry Friedman, New York University School of Law