U.S. Treasury Sanctions Crypto Addresses Linked to Cuba, Tether Freezes $131 Million USDT

The U.S. Treasury has expanded its sanctions net into crypto, adding dozens of addresses across multiple blockchains linked to Cuba-related entities—an escalation that comes as broader geopolitical risks, from the Middle East to regulatory battles in Washington, continue to shape market sentiment.

On Wednesday UTC, the Treasury Department’s Office of Foreign Assets Control (OFAC) added a range of cryptocurrency addresses to its sanctions list, according to PANews. The designated addresses span Bitcoin (BTC), Ethereum (ETH), Solana (SOL), Dogecoin (DOGE), Tron (TRX), Dash (DASH), Zcash (ZEC), and Litecoin (LTC), underscoring how sanctions enforcement is increasingly extending beyond traditional banking rails into public ledgers.

The action also targets state-linked entities including the Cuban Association of Revolutionary Combatants and Cuba’s Ministry of Tourism, the report said. OFAC additionally froze accounts allegedly controlled by Ukrainian national Dmytro Lashevskyi and Belarusian national Yevgeniy Vladimirovich Silayev, claiming they operated virtual tools that caused harm to U.S. interests.

In parallel, Tether froze four wallets on the Tron network holding a combined 131 million USDT, PANews reported Wednesday UTC. The reason for the freeze was not immediately clear. However, on-chain analyst Spector said the funds primarily originated from payment service provider DTC Pay and withdrawals from crypto exchange Bitso, and alleged the wallets were tied to OFAC-designated parties including Iran’s Islamic Revolutionary Guard Corps and the Central Bank of Iran.

Sanctions-related wallet freezes have become a recurring pressure point for stablecoins, which are widely used as trading collateral and for cross-border transfers. While blacklisting addresses can help meet compliance demands, it also reinforces the market reality that centralized stablecoin issuers can exert control over assets on certain networks—an important consideration for traders and institutions assessing counterparty and settlement risk.

Geopolitical tension also intensified in the Middle East, adding another layer of uncertainty for risk assets. According to Odaily, U.S. Central Command said it completed new airstrikes targeting Iran, hitting dozens of military targets near the Strait of Hormuz and along Iran’s coastal areas. The Strait of Hormuz is a critical oil transit chokepoint, and any escalation that threatens throughput can rapidly feed into energy prices, inflation expectations, and broader risk appetite.

Iran’s Revolutionary Guard warned on Wednesday UTC that as long as the U.S. continues attacks on Iran, not “a drop” of oil and natural gas would be exported from the region, Odaily reported citing Xinhua. Separately, the UK Treasury reportedly warned that if the conflict expands further, crude oil could surge to $150 per barrel—an outcome that would likely tighten financial conditions and raise volatility across global markets, including crypto.

Against that backdrop, institutional crypto product development continued. Morgan Stanley submitted amended filings related to Ethereum (ETH) and Solana (SOL) exchange-traded funds, Odaily reported. Bloomberg ETF analyst James Seyffart said on X that the expected tickers are MSSE and MSOL, with fees listed at 0.14%.

In Japan, the lower house advanced a bill that would reclassify Bitcoin and crypto ETFs to the floor for a plenary vote expected within days, according to Odaily. The measure could influence both the introduction of crypto investment products and discussions around tax treatment, as Japan continues to debate reforms to its crypto taxation regime and whether to permit spot ETFs more broadly.

Regulatory coordination also featured prominently. The U.S. and UK released a joint statement through an Atlantic working group, laying out a roadmap focused on stablecoins and tokenized assets, PANews reported. The two governments argued that 'regulated stablecoins' could improve efficiency and competitiveness in the financial system and said they would expand cooperation to reduce market fragmentation.

The statement urged the Bank of England, the UK Financial Conduct Authority, the U.S. Commodity Futures Trading Commission, and the U.S. Securities and Exchange Commission to develop approaches for handling tokenized assets. It also highlighted the need for clearer standards on protecting stablecoin holders, segregating reserves, and defining custodial requirements, while encouraging smoother cross-border funding channels.

The report said the statement coincided with the one-year mark since the passage of the U.S. GENIUS Act. Federal Reserve Chair Kevin Warsh told a House Financial Services Committee hearing that rules are being developed ahead of a July 18 deadline.

Meanwhile, market-structure debates around on-chain derivatives are moving closer to regulators. Hyperliquid Policy Center, Trade.xyz, and Sullivan & Cromwell met with the SEC’s crypto task force to discuss a regulatory framework for crypto assets and decentralized perpetual futures markets, PANews reported. Attendees included Hyperliquid Policy Center CEO Jake Chervinsky, Hyperliquid founder Jeff Yan, and Trade.xyz product lead Collins Belton.

The meeting follows earlier outreach by the policy center, including a submission to the U.S. Commodity Futures Trading Commission seeking exemptions from broker registration obligations for on-chain software developers and self-custodial wallet providers—efforts that reflect the industry’s push to distinguish decentralized infrastructure from traditional intermediaries.

On the business side, JPMorgan warned that the rise of decentralized trading platform Hyperliquid could pressure the USDC revenue dynamics between Circle and Coinbase ($COIN), Odaily reported. JPMorgan reportedly cut its outlook for both firms, arguing that Hyperliquid’s growing role as a major distribution channel for USDC could shift bargaining power and create new competition over stablecoin circulation.

The bank estimated Hyperliquid holds roughly $6 billion in USDC—about 8% of total supply—suggesting a meaningful concentration that could influence flows and fee economics. Still, JPMorgan noted that a persistently high-rate environment could continue to support income generated from USDC reserves, partially offsetting distribution-related headwinds.

Overall, Wednesday’s developments highlighted the two forces increasingly defining crypto markets: intensifying state-level enforcement and geopolitical risk on one hand, and steady institutional and regulatory maturation on the other. For global investors, the intersection of sanctions, stablecoin controls, and evolving market structure is becoming as consequential as price action itself.