Treasury said it sanctioned Iran-linked crypto wallets, with reporting showing Tether froze about $131 million in USDT across four TRON addresses.
OFAC added 134 ISIS-K crypto wallet identifiers, while Chainalysis said Tether froze 131 Tron addresses tied to the sanctions update.
The EU's 21st Russia sanctions package would create a full third-country crypto-asset services ban, escalating pressure on A7A5, banks and sanctions-evasion platforms.