A few years ago, there was a case that truly fascinated me: the fall of AlphaBay. It’s not a common topic of conversation, but the central figure, Alexandre Cazes, was probably one of the most sophisticated operators in the digital black market.

In 2017, the FBI and international authorities announced the closure of what was then the largest darknet market in the world. What’s interesting is how it all happened. Alexandre Cazes, a young Canadian just 25 years old, had built an empire from Bangkok. He lived in luxury mansions, drove expensive sports cars, and owned millions in cryptocurrencies. But his family had no idea what he was really doing.

The platform Cazes operated from 2014 was practically an Amazon of the illegal. More than 40,000 sellers offered drugs, malware, fake documents, and money-laundering services. Daily volume reached millions of dollars. And everything ran on Bitcoin and anonymous identities. Cazes made money from commissions, which allowed him to live like a magnate.

What’s fascinating is that authorities had been pursuing him for years without results. The platform was protected by multiple layers of servers distributed globally. They tried to buy illegal products, track packages—everything failed. It seemed impenetrable.

But then something happened that changed everything. In the early days of AlphaBay, every new user received a welcome email. It was a stupid operational mistake, but that email contained Alexandre Cazes’s real email address. He fixed it quickly, but an anonymous whistleblower had saved that evidence and passed it to the authorities.

With that email, investigators traced his social networks, found old photos, and activity records. They discovered that Cazes was from Quebec and that he had been a software developer. All this information led them straight to Bangkok.

The arrest was almost cinematic. After months of monitoring his movements, they set a trap: a realistic “traffic accident” in front of his villa. An undercover agent crashed into his door. When Alexandre Cazes went down to investigate, dozens of agents surrounded him. What sealed his fate was that he left his computer unencrypted in plain view. They found all his passwords, server addresses, and cryptocurrency accounts.

What happened afterward was tragic. Cazes was arrested at the request of the U.S., facing charges for drug trafficking, identity theft, and money laundering. But before being extradited, he was found dead in a Thai prison. Reports indicate that he committed suicide.

Police confiscated assets worth hundreds of millions: millions in cryptocurrencies, luxury cars, and several mansions. But here’s the irony: with the fall of AlphaBay, new platforms emerged. The cat-and-mouse game between authorities and operators of the black market never stops. Alexandre Cazes was a “king” generation of the darknet, but there’s probably already another one taking his place.