Tether Freezes 131 TRON Wallets Linked to ISIS-K Following OFAC Sanctions

Tether has frozen funds held in all 131 TRON (TRX) wallets recently sanctioned by the U.S. Treasury’s Office of Foreign Assets Control (OFAC), reinforcing its efforts to combat illicit cryptocurrency activity and terrorist financing. The move follows OFAC’s updated designation of ISIS-Khorasan (ISIS-K) on July 1, adding 134 cryptocurrency wallet addresses associated with the terrorist organization.

According to blockchain analytics firm Chainalysis, the latest sanctions include 131 TRON wallet addresses and three Monero (XMR) addresses identified as belonging to ISIS-K. The blockchain intelligence company said the sanctioned TRON wallets collectively received more than $1.4 million in cryptocurrency since 2023 and transferred over $880,000 during that period.

Chainalysis also found that several of the designated wallets sent funds to Syria-based cryptocurrency exchange services, while the wider network maintained connections with mainstream crypto platforms. The findings highlight how terrorist organizations continue to exploit digital assets to move and manage funds across borders.

ISIS-K, an affiliate of the Islamic State operating primarily in Afghanistan, Pakistan, and parts of Central Asia, has been listed by OFAC as a Specially Designated Global Terrorist organization since September 2015. Its media division, the al-Azaim Media Foundation, has previously encouraged supporters to donate cryptocurrencies through websites and encrypted messaging platforms.

Despite these fundraising efforts, Chainalysis noted that individual crypto donations linked to ISIS-K have generally remained relatively small, reflecting the limited financial resources of many supporters. The firm added that it has tracked historical donation addresses associated with the group across multiple blockchain networks, including TRON, Monero, and Bitcoin.

The July 1 sanctions expand earlier enforcement actions targeting ISIS-linked financial networks. In June, OFAC sanctioned several Syrian money service businesses accused of helping ISIS financiers convert cryptocurrency into cash. In 2023, the Treasury also designated Maldives-based operative Ali Shafiu after investigators linked his TRON wallet to deposit addresses connected with Iranian cryptocurrency exchanges.

Tether's latest action aligns with a broader industry trend of cooperation between private blockchain companies and government agencies to disrupt criminal financial activity. The stablecoin issuer has increasingly worked with law enforcement to identify, monitor, and freeze wallets associated with illegal transactions.

Earlier this year, Tether revealed that its T3 Financial Crime Unit, launched in partnership with the TRON network and blockchain intelligence firm TRM Labs in September 2024, had frozen more than $450 million worth of illicit cryptocurrency linked to scams, fraud, and other criminal operations.

Major cryptocurrency exchanges have also stepped up enforcement efforts. Coinbase recently froze more than $3 million in digital assets associated with Southeast Asian scam networks as part of the U.S. Department of Justice's Disruption Week initiative.

The latest enforcement measures underscore the growing collaboration between regulators, blockchain analytics firms, stablecoin issuers, and cryptocurrency exchanges to prevent terrorist organizations and other criminal groups from using digital assets to finance their operations while strengthening compliance across the crypto industry.