Blumenthal staff report ties 84% of 846 sanctioned wallets to Tether's USDT

Those two rates can only blend to 84% if the lists are lopsided. Assume the report's percentages measure the same thing and no wallet appears on both lists. Then about 90% of the 846, or roughly 761 wallets, would be Israeli designations, which leaves around 85 on OFAC's list and roughly 48 of those using USDT ^[17]. The headline count of heavy USDT users comes to about 711 ^[12]. The cryptobriefing.com account does not give a per-list count, and "relied heavily" in the headline figure may be a stricter test than "used" in the breakdown ^[3][4].

The split matters for a US case. The officials Blumenthal wrote to are Treasury Secretary Scott Bessent and Attorney General Todd Blanche, and OFAC is the Treasury's own sanctions office ^[8][2]. On their own list they would have a few dozen wallets to work from, against about 711 in the headline figure ^[12][17].

Tether's answer is the freeze. A single company issues USDT and can freeze tokens at specific addresses ^[10]. Tether says it helped freeze roughly $550 million this year, about 91% of what the two smugglers alone moved, a shortfall of about $53 million ^[13]. The periods differ: the freezes are a 2026 total, and the report's review window opened in June 2021 ^[2][9]. A freeze stops tokens still sitting at an address, and the $603 million had already passed through Hezbollah- and Houthi-linked networks ^[5][10].

Cantor Fitzgerald is the name that reaches holders who never go near a sanctioned address. The report's worry is that a firm with both an ownership stake and a custodial role may not be the most neutral party to scrutinise how the product is used ^[7]. Cantor has two interests in Tether: it is a 5% shareholder, and it manages a large part of US reserves estimated above $100 billion ^[6]. In cryptobriefing.com's assessment, if the self-dealing questions gain traction, the scrutiny could reach how those reserves are managed as well as how the tokens are used ^[15].

I see three plausible paths. The agencies could leave the letter unanswered. Treasury could open a sanctions inquiry, and Tether, with a freeze tool already in daily use, would have a ready way to show cooperation ^[10]. Or the inquiry could widen to the reserves and to Cantor; cryptobriefing.com says systemic findings could push stricter rules on wallet screening, freezes and reporting across all stablecoins ^[16].

I think the second path is the likeliest to produce anything. The OFAC subset gives a US agency its own data, and freezing more costs Tether far less than any change to who holds its reserves. The case against that view is that this is one senator's staff report, and a senator's letter is not an indictment ^[1][11]. If neither Treasury nor Justice has said anything by the end of 2026, the view is wrong ^[11].