US federal prosecutors are examining whether Binance, one of the world's largest cryptocurrency exchanges, violated Iran sanctions by failing to prevent certain trading activity, according to a Reuters report citing Bloomberg. The reported inquiry is being led by the Manhattan US Attorney's Office, with the Justice Department's criminal division also involved.

At the center of the scrutiny is a specific question: whether Binance knowingly allowed the trading in question. That is a higher legal threshold than simply establishing that Iran-linked funds reached the exchange. Investigators would need to determine what information Binance possessed, whether its systems generated warnings, and how the company responded.

The Justice Department declined to comment to Reuters, and the Manhattan US Attorney's Office could not immediately be reached. The report relies on unnamed sources, and no public charging document has been filed. No new charges against Binance have been announced. The period and transactions covered by the inquiry are undisclosed, and it remains unclear whether this is a separate investigation or an expansion of earlier scrutiny.

Binance's 2023 settlement and its compliance promises

Binance pleaded guilty in November 2023 to violating the Bank Secrecy Act, failing to register as a money-transmitting business, and breaching the International Emergency Economic Powers Act, the statute that underpins US sanctions enforcement. Under its Justice Department resolution—one of the largest corporate penalties in US history—the exchange agreed to approximately $4.32 billion in forfeiture and penalties. It was also required to strengthen its anti-money-laundering and sanctions systems and to retain an independent compliance monitor for three years.

A separate Treasury Department settlement imposed a five-year monitorship. The monitor received access to Binance's books, records, and systems and must report its findings to FinCEN, the Treasury's Financial Crimes Enforcement Network, the Office of Foreign Assets Control, and the Commodity Futures Trading Commission. The arrangement places an outside reviewer inside the company specifically to verify whether the promised reforms are carried out.

The earlier case already involved Iran. US authorities said Binance intentionally failed to stop its American customers from trading with users in sanctioned jurisdictions. Between January 2018 and May 2022, the exchange caused more than $898 million in trades between US users and people ordinarily resident in Iran, according to the Justice Department.

The latest scrutiny therefore matters most if it concerns conduct after the settlement. The issue would no longer be whether Binance once had inadequate controls—it admitted as much. The issue would be whether the replacement controls performed differently. That is why the reported inquiry matters beyond Binance itself: federal settlements assume supervised reform works, and this case would put that assumption to a public test.

What the new controls are supposed to do

Under the post-settlement obligations, Binance's compliance program is designed to:

• Verify customers and beneficial owners
• Detect restricted locations and concealed access
• Screen users and wallets against sanctions data
• Trace deposits from high-risk counterparties
• Escalate warnings for human review
• Restrict accounts and report suspicious activity

No compliance program can guarantee that illicit funds will never reach a platform. Its effectiveness depends on whether suspicious activity is detected, investigated, and stopped within a reasonable period—and the monitorships exist to verify, from inside the company, whether that happens.

The $61 million forfeiture case—and what it does not prove

The reported investigation emerged days after Manhattan prosecutors filed a separate civil action seeking approximately $61 million in cryptocurrency allegedly derived from black-market Iranian oil sales.

The Justice Department's complaint alleges that two Hong Kong companies, Blessed Trust and Hexa Whale, used Binance accounts to move proceeds from Iranian oil transactions. Prosecutors connected the companies to a group of crypto addresses that allegedly received and distributed more than $1.5 billion. Some funds were reportedly routed to businesses and addresses associated with Iran's Islamic Revolutionary Guard Corps.

The complaint concerns activity extending through 2024 and 2025—after the Binance settlement. However, it seeks forfeiture of the assets and does not charge Binance with laundering the money. Civil forfeiture proceeds against the property itself, which is why the filing can allege where funds came from without accusing the exchange of a crime.

The distinction matters. The complaint alleges that customers used Binance accounts. It does not establish that Binance knew their stated businesses concealed Iranian oil transactions. The two developments may be connected, but no public source has established that the forfeiture complaint is the basis of the reported Binance inquiry. Treating them as one confirmed case would go beyond the available evidence.

An Iranian connection is only the first step

Several separate facts would need to be established before activity on Binance could become evidence of knowing corporate misconduct. Iran is subject to broad US restrictions, but nationality, residency, and inclusion on an OFAC sanctions list are not interchangeable. The legal analysis can depend on who controlled the account, the underlying transaction, the counterparties involved, and whether the activity touched the US financial system.

Binance says it investigates and removes prohibited users

Binance told Reuters that it follows a zero-tolerance approach to sanctions violations, cooperates with law enforcement, and works to remove bad actors. The company has separately denied that it reduced cooperation with US crypto investigations, making its handling of alerts and law-enforcement requests part of the wider dispute.

Binance offered a similar defense after Reuters traced at least $676 million from addresses associated with the Dubai-based exchange Shelbit to its platform. The company said Shelbit itself did not hold a Binance account and had not been sanctioned. According to Binance, its compliance team investigated related users, froze their accounts, and reported them to law enforcement.

The response describes what a working control system should eventually do. It leaves several questions unanswered:

• When did Binance receive the first actionable warning?
• How much activity occurred before the accounts were restricted?
• Were earlier alerts escalated or dismissed?
• Were the required reports submitted on time?
• Could related customers return through new companies or accounts?\n## The timeline will decide what this story becomes

The reported inquiry could end without charges, produce another enforcement action, or lead to findings from Binance's monitors. Until authorities disclose more, it cannot be treated as proof that the company breached its settlement obligations. The markers that would sharpen the picture are concrete: disclosure of the period and transactions under review, any public charging document, and eventual findings from the monitors installed under the 2023 settlements.

The most important evidence would show when Binance learned about the relevant customers and what happened next. A prompt investigation, account freeze, and report to authorities could indicate that the post-settlement controls worked. Continued trading after clear internal warnings would suggest that the changes failed at the point where they mattered.

The presence of Iran-linked funds on Binance is therefore not the conclusion of the story. The decisive question is whether the exchange's compliance machinery recognized the risk—and whether anyone chose to ignore it.

This article is provided for informational purposes only. A reported investigation does not establish wrongdoing, and allegations in civil complaints remain unproven unless established in court.