How the Scam Works: Fake Iranian Officials Demand Bitcoin
Greek maritime risk consultancy MARISKS has issued an alert about fraudsters targeting stranded vessels in the Strait of Hormuz. They impersonate Iranian authorities, sending messages to shipowners offering safe passage through the chokepoint in exchange for Bitcoin or Tether (USDT) payments. The Strait of Hormuz is one of the world's most critical energy corridors, carrying about one-fifth of global oil and LNG flows. Military activity and shifting restrictions have left hundreds of vessels stalled west of the passage, affecting some 20,000 seafarers.
According to MARISKS, the messages instruct companies to submit vessel documentation for review by “Iranian Security Services,” after which a transit fee would be set in Bitcoin or Tether. The senders claim ships would then receive clearance to pass without interference at a scheduled time. MARISKS said at least one vessel may have fallen victim to the scheme, linking it to a ship that attempted to exit the strait and came under fire, though the connection could not be confirmed. Reuters could not verify which companies received the messages.
Real Background: Iran’s Plan to Charge Bitcoin Tolls
Earlier this month, Iran reportedly planned to require shipping companies to pay transit tolls in Bitcoin for vessels passing through the Strait of Hormuz. The policy would issue payment requests before transit and require settlement in Bitcoin within a short window, designed to bypass traditional financial rails while maintaining control over access during a U.S.–Iran ceasefire period. Security analysts warn that any such payment request carries legal and financial risk. Even if funds do not reach sanctioned entities, companies could face exposure under sanctions regimes tied to Iran. MARISKS stresses that the recent fraudulent messages are not linked to Tehran.
Conclusion: Avoid Double Traps – Protect Funds and Compliance
The geopolitical tension in the Strait of Hormuz creates a perfect storm for scammers. Stranded owners eager for passage may fall for fake “inside channels.” Meanwhile, Iran’s real plan to accept Bitcoin payments adds confusion. Shipping companies should: 1) verify any transit fee request through official Iranian shipping agents or their own embassy; 2) never send Bitcoin or USDT to unauthorized accounts; 3) keep records for legal recourse. In crypto, as in maritime security: don’t trust, verify.

