Tether froze funds in all 131 TRON wallets sanctioned by the US Treasury's OFAC in its July 1 update to the ISIS-K designation. Chainalysis said the update added 134 crypto addresses as identifiers, including 131 on TRON and 3 on Monero. Chainalysis reported that the designated TRON wallets received more than $1.4 million since 2023 and sent over $880,000. The update followed a June OFAC action against Syrian money service businesses that cashed out funds for ISIS financiers.