On August 19, a twentysomething man who goes by the online handle ZachXBT was walking into an airport to board a flight home—which airport, his real name, where home is, he’d rather...

For eight months, the criminal investigator who pioneered cryptocurrency tracing as a law enforcement technique has, in a bizarre twist of fate, been jailed in Nigeria facing charges of money laundering and...

In November of 2020, a person identified by the US Department of Justice only as “Individual X” sat down with an IRS agent named Tigran Gambaryan and prosecutors at the US Attorney’s...

When Tigran Gambaryan was first invited in February to meet with the Nigerian government in order to settle a dispute with his employer, the cryptocurrency exchange Binance, Nigerian officials detained him against...

For at least a decade, a car theft trick known as a “relay attack” has been the modern equivalent of hot-wiring: a cheap and relatively easy technique to steal hundreds of models...

In the fall of 2020, as crypto scammers and thieves began to realize the full potential of a financial privacy tool called Tornado Cash—a clever new system capable of shuffling users' funds...

One task where AI tools have proven to be particularly superhuman is analyzing vast troves of data to find patterns that humans can't see, or automating and accelerating the discovery of those...

In his years as a US federal agent, Tigran Gambaryan helped to lead landmark investigations that took down cryptocurrency thieves and money launderers, dark-web drug dealers, and even crypto-funded child exploitation networks....