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US Sanctions on Iran

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The U.S. Treasury Department has expanded its sanctions enforcement to target digital asset exchanges facilitating payments for the Iranian regime.From: US Treasury Sanctions Iranian Crypto Exchange BitBank Over Hormuz Transit Payments

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On September 17, 2026, the U.S. Treasury sanctioned the Iranian cryptocurrency exchange BitBank. The Office of Foreign Assets Control blacklisted the digital asset platform, freezing its U.S. assets and severing its access to global liquidity networks.

The exchange was identified as processing transit payments for vessels navigating the Strait of Hormuz. The U.S. Treasury stated that the funds routed through the platform directly supported the Islamic Revolutionary Guard Corps. The designation threatens secondary sanctions for any foreign institutions that fail to comply.

How the story developed

Between 2022 and 2024, the application of U.S. secondary sanctions surged by nearly 390 percent. By August 26, 2026, the U.S. Treasury had launched a secondary sanctions campaign named Operation Economic Outcast, designed to sever Iran's remaining ties to the global economy.

The campaign relies on threatening to cut off foreign entities from the U.S. dollar system if they trade with Tehran. This policy forces non-aligned nations in the Global South to choose between their economic sovereignty and access to global finance. China, which purchases approximately 80 percent of Iran's shipped oil, faces a direct challenge to its banking sector as a result of the policy.

Sanctions enforcers are increasingly pivoting to on-chain tracking to disrupt illicit financial networks.From: US Treasury Sanctions Iranian Crypto Exchange BitBank Over Hormuz Transit Payments ·

The U.S. Treasury also extended these secondary sanctions to digital assets, transforming global cryptocurrency networks into an extension of American financial policy. The Office of Foreign Assets Control enforces these sanctions on a strict liability basis, meaning that intent or knowledge is not required for a violation.

Under this framework, stablecoin issuers represent a critical chokepoint because they can be compelled to freeze assets at the protocol level. Blockchain transparency makes evasion highly visible, allowing the Office of Foreign Assets Control to target specific wallet addresses and smart contracts. Analysts warned that weaponizing the dollar could accelerate global efforts to build alternative financial systems.

How secondary sanctions isolate foreign intermediaries from the US dollar.From: US Secondary Sanctions Extend American Financial Policy Over Global Crypto Networks ·

Key numbers

475
Secondary sanctions cases (2024)
390%
Increase in cases since 2022
$4.3B
Binance OFAC settlement

From: US Secondary Sanctions Extend American Financial Policy Over Global Crypto Networks

Charts, maps and images

Centralized stablecoin issuers represent a critical enforcement chokepoint for OFAC.From: US Secondary Sanctions Extend American Financial Policy Over Global Crypto Networks ·
The application of US secondary sanctions has surged nearly 390% since 2022.From: US Secondary Sanctions Extend American Financial Policy Over Global Crypto Networks ·
How secondary sanctions weaponize the U.S. dollar to enforce foreign policy.From: How 'Operation Economic Outcast' Forces Global Markets to Choose Between the Dollar and Iran ·
China, the UAE, and Turkey have historically been Iran's largest trading partners.From: How 'Operation Economic Outcast' Forces Global Markets to Choose Between the Dollar and Iran ·
The sanctioned exchange was utilized to process transit fees demanded by Iranian authorities for vessels navigating the Strait of Hormuz.From: US Treasury Sanctions Iranian Crypto Exchange BitBank Over Hormuz Transit Payments ·
China's response to the threat of secondary sanctions will determine the ultimate effectiveness of the U.S. economic blockade.From: How 'Operation Economic Outcast' Forces Global Markets to Choose Between the Dollar and Iran ·