Greenberg…has produced an exhaustive prequel to the never-ending WikiLeaks saga. Unlike some recent books on the subject, this one adopts a decidedly historical perspective and situates the ideas behind WikiLeaks in the heady debates about computing, privacy and civil liberties that have dominated many an online conversation in the last three decades. And, as if this challenge were not grand enough, Greenberg also tries to explain the highly complex technologies that have made a project like WikiLeaks possible, introducing such hidden gems of geek cuisine as "salt hashing" and "onion routing." By and large, he succeeds, and the resulting dish is delicious and not at all too technical.
—Evgeny Morozov

"With complete access to many of the key hackers and leakers, Greenberg delves eloquently into the magicians of the all-powerful technology that shatters the confidentiality of any and all state secrets while tapping into issues of personal privacy." —Publishers Weekly