Some of this story, in particular the dramatic takedown of the Silk Road and the capture of its creator, Ross Ulbricht, has been told before. Greenberg’s narrative differs from Nick Bilton’s American Kingpin in that it leans more heavily on the point of view of law enforcement. Greenberg has less insight into specific criminal personalities, but that lack is balanced by his level of detail and the absorbing narrative of the investigators. Each key section of the book unfolds like a compact mystery.

... spellbinding.

Greenberg methodically and meticulously explains the way cryptocurrency functions.

A sinuous, eminently readable story.

Greenberg examines in fascinating detail how criminals have employed technology for their nefarious ends, along the way providing a history of Bitcoin and a look at a possible future technology that would make 'truly untraceable and anonymous finances possible.' He brings to vivid life the assorted players, including the agents who cracked the crimes, those in law enforcement who succumbed to the allure of fast money on the dark web, and the private citizens who ushered in the golden age of cryptocurrency tracing. This is a must-have for the true crime shelf..