The U.S. Treasury Department escalated its use of digital asset sanctions on July 15, 2026, as the Office of Foreign Assets Control (OFAC) added cryptocurrency wallet addresses across multiple blockchain networks to its sanctions list related to Cuba, and separately froze over $130 million in wallets tied to the Central Bank of Iran.
In the Cuba-related action, OFAC designated addresses on the Tron (TRX), Dogecoin (DOGE), Solana (SOL), Dash (DASH), Zcash (ZEC), and Litecoin (LTC) networks, along with accounts holding Bitcoin (BTC) and Ethereum (ETH). The Treasury said these wallets are associated with foundation funds and digital asset accounts linked to the Cuban government. Transactions with these addresses, or any indirect provision of financial services to them, are now prohibited for U.S. persons and institutions. Crypto exchanges and custodians are expected to block the addresses as part of anti-money laundering and sanctions compliance.
Separately, Treasury Secretary Scott Bessent announced that OFAC sanctioned multiple digital-asset wallets tied to Iran’s central bank, resulting in the freezing of over $130 million. Bessent framed the move as disrupting Iran’s “abuse of digital assets” for illicit finance. The action establishes that wallet designations can lead to immediate asset freezes and turn blockchain addresses into sanctions chokepoints, raising compliance risks for counterparties and platforms globally.
The dual actions signal a broader regulatory trend: OFAC is treating blockchain addresses as actionable targets under sanctions law, with direct market consequences. Experts note that the transparent nature of blockchain makes sanctioned wallets traceable, while underscoring the growing weight of compliance mechanisms in the crypto sector. The moves suggest that oversight will likely tighten further for global digital asset service providers.
