Tether, the world’s leading stablecoin issuer, has frozen the USDT balances in 131 TRON wallets after the Office of Foreign Assets Control (OFAC), a division of the U.S. Treasury, expanded its sanctions list. The update targeted wallets believed to be tied to ISIS K, a militant group active in Afghanistan, Pakistan, and parts of Central Asia. In all, a total of 134 crypto wallet addresses were added to the sanctions list: 131 on the TRON network and 3 on Monero.