‘Reads like a thriller… These stories are amazing.’
–Michael Lewis, #1 New York Times bestselling author of The Big Short

‘A master-class in the tactics and countertactics of financial cyberwarfare, laid out in a tense, exciting technothriller.’
–Cory Doctorow, author of Little Brother

‘An absorbing narrative than unfolds like a mystery’
–New York Times Book Review (Editors’ Choice)

‘Immensely readable… a romp through some of the most infamous dark web takedowns in recent memory.’
–Washington Post

Dirty cops, trafficking rings, globe-spanning, nail-biting undercover detective work and the biggest takedown of the online narcotics market in the history of the internet. This is the story of how a single innovation has fuelled the world’s criminal financial markets, and unleashed a cat-and mouse game like no other.

Over the last decade, crime lords inhabiting lawless corners of the internet have operated more freely – whether in drug dealing, money laundering, or human trafficking – than their old school counterparts could have ever dreamed of. By transacting in currencies with anonymous ledgers, overseen by no government and beholden no bankers, they have robbed law enforcement of the primary method of cracking down on illicit finance: following the money.