USDBinance Rejects Senate Claims of Iran-Linked Crypto Transfers as Lawmakers Probe Alleged $1.7B Flows Through Exchange
Exchange disputes congressional inquiry citing reports of sanctions violations, intermediary accounts, and compliance concerns
TL;DR
- U.S. Senator Richard Blumenthal opened a congressional inquiry into alleged Iran-linked crypto transfers totaling roughly $1.7B connected to accounts on Binance.
- Binance denies the accusations, calling the claims “false and defamatory” and stating no accounts on the exchange transacted directly with Iran-based entities.
- The dispute unfolds as lawmakers scrutinize intermediary accounts, compliance procedures, and previous sanctions violations tied to the exchange.
We’ve launched the all-new COIN360 Perp DEX, built for traders who move fast!
Trade 130+ assets with up to 100× leverage, enjoy instant order placement and low-slippage swaps, and earn USDC passive yield while climbing the leaderboard. Your trades deserve more than speed — they deserve mastery.
Tensions between U.S. lawmakers and Binance escalated after the exchange rejected allegations that billions of dollars in crypto transfers tied to Iranian networks passed through its platform, calling the claims inaccurate and based on flawed reporting. The dispute emerged after Senator Richard Blumenthal, ranking member of the Senate Permanent Subcommittee on Investigations, launched a probe requesting internal documents related to suspected sanctions violations. The inquiry focused on transactions reported to have moved through accounts linked to intermediaries operating on the exchange and asked the company to explain compliance measures designed to block access by sanctioned entities.
Lawmakers’ concerns centered on claims that roughly $1.7 billion in crypto transactions linked to Iranian networks may have flowed through the platform. The allegations were tied to investigative reporting cited in the congressional inquiry, which referenced internal compliance reviews said to have taken place between 2024 and 2025. Reports described transfers routed through accounts connected to two intermediaries known as Hexa Whale and Blessed Trust, entities lawmakers said may have helped facilitate transactions tied to sanctioned actors.
The Senate letter referenced reporting that suggested some of the transactions involved wallets associated with Iran’s Islamic Revolutionary Guard Corps and payments tied to Russia’s so-called shadow fleet used to move sanctioned oil shipments through global markets. Lawmakers asked the exchange to explain whether compliance investigators raised warnings internally and requested records about how the platform handled those alerts and whether any staff members were disciplined or dismissed after flagging potential violations.
Blumenthal formally sent the document request to the company on February 24, 2026, asking for communications, compliance records, and other internal materials related to the alleged transfers and the intermediary accounts. The letter also sought information about how the platform screens users and transactions for sanctions violations and whether compliance teams identified suspicious activity linked to Iranian or Russian networks.
Binance responded publicly on March 6, 2026, rejecting the accusations and arguing the inquiry relied on inaccurate reporting. Co-CEO Richard Teng wrote that the company had “voluntarily responded to Senator Blumenthal’s inquiry which raises false and defamatory allegations reported by the WSJ,” while reiterating that the exchange maintains a robust compliance framework. The company’s legal team delivered a separate response stating that “the recent reporting on which your inquiry relies… is demonstrably false, unsupported by credible evidence, and defamatory in several material respects.”
Exchange representatives also denied claims that employees who raised compliance concerns were punished. Binance said the workers referenced in reports were not terminated for raising alarms but were dismissed after violating confidentiality rules by sharing internal user information outside the company. Officials stated that accounts mentioned in the investigation did not transact directly with entities located in Iran and that sanctions screening and Know-Your-Customer controls were in place to prevent such activity.
Company statements said internal investigations had already examined the intermediaries cited in the probe. Hexa Whale was removed from the platform in August 2025, while Blessed Trust was offboarded in January 2026 following internal reviews of their activity. Binance said those actions occurred after the company scrutinized the accounts as part of its compliance monitoring processes.
Binance said its compliance operations have expanded significantly, noting the company now employs more than 1,500 compliance staff worldwide responsible for transaction monitoring and enforcement of sanctions policies. Officials also said the platform responded to more than 71,000 law-enforcement requests during 2025 and helped authorities seize more than $752 million in illicit funds across the previous three years.
Internal data cited by the exchange said exposure to wallets linked to illicit activity declined from 0.284% of total exchange volume during early 2024 to 0.009% by mid-2025, a reduction the company said reflects improvements in its compliance systems and monitoring infrastructure.
Lawmakers’ scrutiny also referenced claims that more than 2,000 accounts linked to Iranian activity had previously been flagged internally by compliance staff. The Senate letter argued the exchange “appears to have ignored warnings and recommendations to prevent Iranian money laundering schemes,” while requesting records that could clarify how the company responded to the alerts.
The investigation unfolded against the backdrop of Binance’s earlier legal settlement with U.S. authorities. The exchange agreed to pay $4.3 billion in penalties during 2023 after admitting failures in anti-money-laundering and sanctions compliance programs. The agreement required enhanced monitoring and oversight of the company’s operations under a multi-year compliance framework.
The settlement also forced founder and then-CEO Changpeng “CZ” Zhao to step down after pleading guilty to violations tied to anti-money-laundering rules. Zhao later served a four-month prison sentence in 2024 following the charges. President Donald Trump issued a pardon to Zhao during 2025, eliminating the legal consequences of the conviction.
Political scrutiny intensified after reports connected the exchange to a venture known as World Liberty Financial, a Trump-linked financial project cited in the congressional inquiry. Reporting referenced by lawmakers stated that about 85% of the venture’s stablecoins were reportedly held in accounts on the exchange.
Lawmakers framed the investigation within broader concerns about the use of digital assets to circumvent economic sanctions imposed on countries including Iran and Russia. Data referenced in the discussion indicated that illicit cryptocurrency addresses received at least $154 billion during 2025, representing a 162% increase compared with the previous year.
Researchers cited by lawmakers attributed much of the growth to a surge in activity involving sanctioned entities, reporting a 694% increase in funds tied to those actors. Stablecoins accounted for about 84% of illicit transaction volume during 2025 compared with roughly 15% recorded during 2020.
Congressional investigators also requested documentation detailing how Binance detects and blocks transactions linked to sanctioned jurisdictions and how it manages accounts operated by intermediaries or third-party service providers. The letter set a deadline requiring the company to submit requested documents by March 6, 2026.
The dispute also highlights the scale of Binance’s operations within the digital-asset trading sector. Market data cited in the reporting said the exchange processed approximately $2.12 trillion in trading volume during a single month, a figure described as roughly equal to the combined activity of its three nearest competitors.
This article has been refined and enhanced by ChatGPT.
