Tether: Senator’s Investigation Misses Positive Work That’s Led To Lower Iran Volumes

TL;DR

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Tether CEO Paolo Ardoino said a Senate Democratic report on Iran-linked transactions overlooked the company’s sanctions work. He cited Tether data showing freezes occurred an average of four weeks before official U.S. and Israeli designations and said Iran-linked stablecoin volumes fell 94%; those figures are company claims, and the report focused partly on earlier practices.

Tether CEO Paolo Ardoino said Monday that a Senate Democratic investigation into Iran-linked cryptocurrency activity failed to account for the company’s recent sanctions work, including freezes he said often preceded official designations. Ardoino also attributed a 94% decline in Iran-linked stablecoin volumes to Tether’s actions, a company claim that the Senate report’s findings do not independently verify.

In a post on X, Ardoino said that since 2023 Tether had frozen relevant addresses an average of four weeks before they were formally designated by the U.S. Treasury Department’s Office of Foreign Assets Control (OFAC) and Israel’s National Bureau for Counter Terror Financing (NBCTF). He also said Tether froze the addresses before Chainalysis labeled them in 99% of cases. The source material does not provide the underlying dataset or a detailed methodology for either comparison.

Ardoino said the company’s work had led to Iran-linked stablecoin volumes declining by 94%. He did not provide a measurement period, baseline, or breakdown of the transaction activity in the statement described by CoinDesk. The percentage should therefore be treated as Tether’s assertion rather than a fully specified independent measure of a change in Iran’s overall use of stablecoins.

The Senate Permanent Subcommittee on Investigations report, issued the previous month, accused Tether of providing “a significant financial lifeline within Iran’s shadow banking network.” It focused in part on activity before 2024 and said Tether had not comprehensively frozen flagged wallets during that period. The two accounts emphasize different time frames: the committee’s concerns include earlier conduct, while Ardoino’s defense centers on freezes and reported changes since 2023.

The Dispute Over Tether’s Sanctions Record

The disagreement matters because USDT is a widely used dollar-linked stablecoin, and the Senate report frames its possible use in Iran as a concern about sanctions enforcement and illicit finance. The report said terrorist organizations, including Hamas, shifted toward promoting USDT after using bitcoin and other cryptocurrencies. That is the committee’s account of the activity; the supplied material does not establish the scale of those transactions or independently test the claim.

Ardoino’s response shifts attention to how quickly a stablecoin issuer acts when it identifies suspicious wallets. If Tether’s timing figures are accurate, the company says it can freeze addresses before government agencies formally designate them. But the reported drop in Iran-linked volumes does not, by itself, show whether users stopped transacting, moved to other assets or services, or were captured differently by monitoring systems. Ardoino himself said bad actors were moving to methods outside Tether’s and U.S. authorities’ control.

The dispute also has a policy dimension. Lawmakers are examining whether crypto firms and their financial relationships are adequately monitored. The source report says Senator Richard Blumenthal has separately been probing Tether’s relationship with Cantor Fitzgerald, a U.S. financial partner with ties to the Trump administration. These questions make the quality and transparency of the evidence behind both the committee’s allegations and Tether’s response relevant beyond the company itself.

How the Senate Report and Response Differ

The Senate Permanent Subcommittee on Investigations released its report in September 2026, according to the October 19 account. Blumenthal, the subcommittee’s top Democrat, led the effort. The report examined Tether’s handling of flagged wallets over a period reaching back several years and argued that, before 2024, the company did not comprehensively freeze some wallets associated with illicit activity.

At a Washington event, DC Fintech Week, the Tuesday before his Monday social-media response, Ardoino criticized the report’s release to the media before Tether could review it. He said he wanted the public to hear the company’s account. The source does not give the precise date of that event. Tether has also named Bo Hines, a former White House crypto adviser under President Donald Trump, as head of its U.S. division, a detail reported in connection with wider scrutiny of the company.

“Since 2023, Tether froze on average 4 weeks prior to OFAC & NBCTF official sanction designation and for 99% of the times Tether froze the reported addresses before Chainalysis labelled them.”

— Paolo Ardoino, Tether CEO, in a post on X

Evidence Behind the Competing Claims

The material available does not include the full Senate report, Tether’s underlying transaction data, or a detailed response from the subcommittee to Ardoino’s figures. It is not clear how Tether calculated the four-week average, which addresses were included in the 99% comparison, or how the reported 94% volume decline was measured. The time period and baseline for that decline are also unspecified.

It is also unclear how much Iran-linked activity involved USDT, whether the reported drop reflects reduced transactions or a move to other networks and assets, and how the committee’s earlier-period findings compare with Tether’s post-2023 claims. The source describes the Senate inquiry as a report by subcommittee Democrats; it does not establish that the findings represent a final determination by the full Senate.

Further Scrutiny of Tether’s Ties

Blumenthal’s inquiry into Tether’s relationship with Cantor Fitzgerald was continuing as of the October 19 report. The supplied material does not identify a deadline, a scheduled hearing, or a planned response from the senator to Ardoino’s latest statements. Any further disclosures, committee findings, or company data could clarify how the competing accounts relate.

For now, the confirmed development is Tether’s public rebuttal, not an independent resolution of the underlying allegations. The company says its monitoring and freezes helped reduce Iran-linked stablecoin activity; the Senate report says earlier gaps allowed abuse. More detail about time periods, wallet evidence and measurement methods would be needed to compare those claims directly.

Key Questions

What did Tether say about the Senate report?

CEO Paolo Ardoino said the report overlooked Tether’s work to identify and freeze suspicious addresses. He argued that the company acted before some official sanctions designations.

What decline in Iran-linked stablecoin activity did Ardoino claim?

Ardoino said Iran-linked stablecoin volumes had fallen by 94% as a result of Tether’s actions. The statement described in the source does not specify the measurement period, baseline, or independent verification.

What did the Senate report allege?

The Senate Permanent Subcommittee on Investigations report said Tether provided “a significant financial lifeline within Iran’s shadow banking network” and criticized its handling of flagged wallets, particularly in periods before 2024.

Has the disagreement been resolved?

No. Ardoino has disputed the report’s account, but the material available does not provide the underlying data needed to independently compare the claims or show a final response from the subcommittee.

Source: rss