“Andy Greenberg has turned a prescient lens on the investigators, technology, and budding industry that may just be the most powerful weapon we wield in the fight against cybercriminals and illicit nation states who mistakenly believed that the blockchain and cryptocurrency offered them cover. Greenberg tells the tale of this new weapon with his usual eye for technical accuracy and gift for storytelling. This is how the good guys win.”
Nicole Perlroth, New York Times bestselling author of This Is How They Tell Me the World Ends
Tracers in the Dark: The Global Hunt for the Crime Lords of Cryptocurrency explores how cryptocurrency, long believed to guarantee anonymity, became a valuable resource for investigators working to expose online criminal networks.
Journalist Andy Greenberg follows the emergence of a new approach to digital crime-solving, as law enforcement agencies and independent analysts began to uncover patterns in Bitcoin transactions once thought to be invisible. By carefully tracing activity recorded on the blockchain, they were able to identify connections between digital wallets and real-world identities.
Through a series of investigations, Greenberg introduces the people and organizations responsible for advancing early techniques in blockchain tracing. These include federal agents, data analysts, and legal teams who worked behind the scenes to connect digital transactions to offline actors. His account traces their efforts to take down major darknet markets such as Silk Road and AlphaBay, highlighting how blockchain analysis became a critical tool in uncovering illicit financial activity.
The book also examines how investigative practices evolved alongside the technology.
Greenberg explains how investigators used public data and legal access to platforms to track the movement of digital currency across national borders and link it to individuals. These cases show that, despite its decentralized design, the blockchain generated records that could be analyzed to uncover illicit activity over time.
Tracers in the Dark details how the public nature of blockchain data reshaped expectations around privacy and law enforcement access, and how that development continues to affect financial oversight and legal frameworks.
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