From Crime Fighter to Captive: The Detention of Binance's Tigran Gambaryan in Nigeria

Tigran Gambaryan spent his career chasing crypto criminals across the globe. In February 2024, that career took an unexpected detour: a trip to Nigeria, framed as a routine compliance meeting, ended with him detained by the very kind of government body he had once worked alongside.

Gambaryan built his reputation over a decade as a Special Agent with IRS Criminal Investigation. His record reads like a list of the era's most significant crypto-crime prosecutions, later chronicled in Andy Greenberg's book "Tracers in the Dark":

• Silk Road: Gambaryan helped expose two corrupt federal agents who were skimming Bitcoin from the investigation itself. Contrary to a common misconception, it was not Gambaryan who identified Ross Ulbricht — that credit belongs to Gary Alford.
• Mt. Gox: he worked on tracing and recovering a portion of the exchange's stolen holdings.
• AlphaBay: his tracing methods contributed to the shutdown of what was then the largest dark-web marketplace.
• Welcome to Video: he took part in dismantling a crypto-funded child exploitation site.

Across his federal career, Gambaryan is credited with helping seize more than $4 billion in criminal assets — among the largest totals of its kind in U.S. history.

A move to the industry side

In 2021, Gambaryan left government service for Binance, joining as VP of Global Intelligence and Investigations and later serving as Head of Financial Crime Compliance. Under his tenure, the exchange's compliance function is credited with freezing or seizing roughly $2.2 billion in illicit funds over a two-year span — a notable shift for an exchange that had previously drawn heavy scrutiny over its compliance practices.

The trip to Nigeria

On February 25, 2024, Gambaryan and a colleague, Nadeem Anjarwalla, traveled to Nigeria at the Nigerian government's invitation, reportedly to discuss Binance's operations and the exchange's economic impact in the country. Within days, both men had their passports confiscated and were held without formal charges, described by officials only as "guests" of the state.

On March 23, during Ramadan prayers, Anjarwalla escaped custody. Gambaryan did not, and was subsequently moved to Kuje prison, where reporting says he has been held alongside inmates that include terrorists and other high-profile criminals. Nigerian authorities went on to bring tax evasion and money-laundering charges against him; the tax evasion charges have since been dropped. He now faces allegations, brought by Nigeria's Economic and Financial Crimes Commission, of involvement in a $35 million money-laundering scheme. His legal team argues that, as a mid-level compliance employee, he should not be held liable for Binance's broader corporate conduct.

Separately, the Nigerian government has demanded $10 billion from Binance, alleging the exchange enabled $26 billion in untraceable funds to leave the country amid a foreign-exchange crisis.

Conditions in custody

Reports describe Gambaryan's health deteriorating significantly during his detention, citing malaria, pneumonia, tonsillitis, and a herniated disc. Footage has circulated showing him appearing in court on a single crutch while asking for a wheelchair.

Calls for release

In July, U.S. Representatives French Hill (R-AR) and Rich McCormick (R-GA) introduced a House resolution urging Congress to formally designate Gambaryan as a hostage. As of this writing, the U.S. State Department has acknowledged the situation but has not classified Gambaryan as unlawfully detained or a hostage.

Binance CEO Richard Teng has publicly called for Gambaryan's release, stating that "to invite a company's mid-level employees for collaborative policy meetings, only to detain them, has set a dangerous new precedent for all companies worldwide."

Andy Greenberg, who chronicled Gambaryan's investigative career in "Tracers in the Dark," has pressed U.S. officials — including the State Department, Secretary of State Antony Blinken, and the Special Presidential Envoy for Hostage Affairs — to intervene, describing Gambaryan as "the former US federal agent who led many of the biggest crypto crime cases in history."

A broader pattern

Some commentators have drawn a parallel between Gambaryan's detention and the arrest of Telegram founder Pavel Durov, framing both as examples of state authorities extending pressure onto individuals tied to crypto and technology platforms, regardless of their personal role in any alleged wrongdoing. With the money-laundering case still unresolved and U.S. officials yet to formally classify his detention, Gambaryan's situation continues to raise questions about how compliance professionals and executives are treated when their employers become the target of a government dispute.