US Treasury freezes Iran-linked crypto wallets worth $130M

Washington froze more than $130 million tied to Iran-linked crypto wallets on Wednesday, moving its sanctions campaign into the stablecoin rails used for dollar-linked transfers. Instead of focusing only on banks or exchanges, the Treasury action put wallet addresses and token issuers at the center of the enforcement map.

In a statement posted by Treasury Secretary Scott Bessent, the Office of Foreign Assets Control said it had targeted multiple Iran-linked wallets and would keep pursuing money behind the country’s sanctions-evasion networks. For crypto markets, the message was specific: issuers that can restrict identified wallets are now part of the sanctions toolkit.

“@USTreasury is committed to disrupting and degrading Iran’s illicit financial activities, including its abuse of digital assets.”
Scott Bessent, Treasury Secretary

According to The Block, the freeze centered on four Tron wallets holding about 131 million USDT, Tether’s dollar-pegged token. USDT moves across public blockchains, but its issuer can still restrict wallets after law-enforcement agencies identify them. That made this case a targeted stop on specific payment rails, not a broad attack on the crypto market.

Tether had sketched out the same role in April, when it described a separate enforcement action involving more than $344 million in USD₮ across two addresses. The company said then that wallets tied to sanctions evasion or other illicit activity can be restricted, giving Wednesday’s Treasury move a recent precedent in which a stablecoin issuer acted with U.S. authorities before funds reached an exchange.

“When wallets are identified as connected to sanctions evasion, criminal networks, or other illicit activity, Tether can move to restrict those assets.”
Tether

Wallet-level enforcement

Mechanically, the action appears to have joined OFAC’s sanctions designation power with a stablecoin issuer’s blacklist function. That combination can let enforcement reach assets before they are converted back into bank deposits. Bessent did not lay out the full evidentiary chain, but Treasury’s description and Tether’s prior statement show sanctions work moving closer to the wallet layer.

Bitcoin and the wider token market showed no obvious price shock from the announcement. Market structure is still part of the story. Washington is treating crypto assets linked to Iran as a sanctions-enforcement problem, while stablecoin issuers are being reminded that scale creates chokepoints as well as liquidity.

Tron-based transfers now face added scrutiny because the network remains common in cross-border stablecoin activity, helped by low fees and fast settlement. Treasury did not say why the wallets sat on Tron rather than another chain. Still, The Block’s account of the four-wallet freeze points to an enforcement model built around tracing, naming and immobilizing individual wallets rather than policing the whole crypto market at once.

For crypto firms, the practical signal is that sanctions policy and market structure are now joined at the wallet level. A freeze of more than $130 million is large enough to draw attention by itself. More important is the operating model: when Treasury, OFAC and a centralized stablecoin issuer can work from the same wallet list, crypto rails become a front-line sanctions target rather than a side channel.