The Billion-Dollar Paper Trail

At the center of the inquiry sit specific flows totaling $1.7 billion from Chinese clients into digital wallets that ultimately supported Iranian proxies. More than $1 billion of that amount reportedly passed through a Hong Kong-based payments firm called Blessed Trust.

Binance’s internal review later identified only $24 million that reached wallets directly associated with the IRGC, according to details shared with investigators. U.S. authorities have already contacted individuals familiar with the transactions to gather evidence on exactly how the funds moved through the exchange.

Compliance Under Pressure and Presidential Pardons

The timing adds weight. Binance operates under a strict compliance agreement struck in November 2023, when it pleaded guilty to violating U.S. anti-money-laundering and sanctions laws.

The settlement required a record $4.3 billion penalty, the largest ever imposed on a crypto firm, and placed the exchange under ongoing monitoring by the Treasury Department through 2029. Binance’s founder stepped down as CEO and served four months in prison. Later, Changpeng Zhao received a presidential pardon in October.

The current probe tests whether those reforms have held.

Escalating Legal and Congressional Inquiries

Senator Richard Blumenthal, a senior Democrat on the Homeland Security Committee, opened a formal inquiry in February after learning of unreported flows totaling more than $1.7 billion and the temporary suspension of Binance staff who flagged the activity.

He pressed the company for records, only to receive a response he described as evasive. The Treasury’s independent monitor has since demanded additional details from Binance about the Iranian transactions and its relationship with Blessed Trust.

Binance has pushed back firmly. The company states it “categorically did not directly transact with any sanctioned entities” and has cooperated with law enforcement by shutting down accounts linked to the flagged activity. It has not confirmed awareness of the latest DOJ investigation but notes it continues to work with regulators.

Separately, Binance filed a defamation lawsuit against the Wall Street Journal over an earlier February report that accused the exchange of firing employees who raised the $1 billion red flags.

Dominating the Global Crypto Market

The senators’ statement pulled no punches. They pointed to Binance’s “established track record of putting profits ahead of the law” and warned that the latest revelations raise “serious concerns” that the firm is again violating sanctions while helping finance terrorist-linked operations.

Scale matters in this story. Binance processed more than $7.3 trillion in spot trading volume across 2025 and held roughly 38 percent of the global centralized exchange market that December, according to data from CoinGecko and Kaiko. It reported around $20 billion in average daily spot volume at year-end and serves an estimated 300 million registered users.

Iran has leaned harder on cryptocurrency in recent years to repatriate proceeds from oil sales to China, and to bypass traditional banking channels blocked by sanctions.

A Critical Test for Industry Standards

The 2023 settlement forced Binance to strengthen client screening for terrorism financing and report suspicious activity. The current case revolves around whether those controls caught every red flag in real time. Investigators remain unclear on whether the probe targets Binance itself or focuses primarily on the customers and intermediaries involved. Either path carries consequences for how the exchange manages high-risk jurisdictions.

Binance maintains that it has significantly improved its compliance program since the 2023 resolution. It points to account terminations and ongoing cooperation as proof of good faith. Yet the combination of a high-profile pardon for its founder, fresh multimillion-dollar flows, and renewed congressional pressure has kept the exchange squarely in the spotlight.

As the Justice Department gathers interviews and documents, the senators intend to closely review progress. Their involvement guarantees public scrutiny of any findings and could shape future regulatory expectations for the entire crypto sector. For now, the investigation continues without public charges or admissions.