Fraudsters Target Shipping Firms in Strait of Hormuz with Cryptocurrency Scam

This incident highlights vulnerabilities in maritime security and the potential for cryptocurrency to facilitate fraud during geopolitical crises.

• Fraudsters targeted global shipping firms with fake demands for Bitcoin or Tether payments for transit clearances in the Strait of Hormuz.
• At least one vessel, the Indian-flagged tanker Sanmar Herald, reportedly paid fees before being fired upon by Iranian Revolutionary Guards.
• MARISKS issued alerts confirming the messages were fraudulent, urging shipowners to ignore them amid ongoing blockades.

• Geopolitical tensions escalated in February 2026, leading to Iran's blockade of the Strait of Hormuz in response to US-Israel military actions.
• Hundreds of vessels are stranded in the strait, carrying one-fifth of global oil and LNG flows, creating desperation that scammers exploit.
• Iran's proposal for cryptocurrency tolls on April 9 aimed to circumvent sanctions, but the situation has led to confusion and vulnerability among shipping firms.

The recent scam targeting shipping firms in the Strait of Hormuz is a direct consequence of heightened geopolitical tensions and the resulting operational chaos. Following the US-Israel strikes on Iran in late February 2026, Iran responded by blocking the strait, a critical maritime route for global oil and LNG shipments. This blockade has left hundreds of vessels stranded, with approximately 20,000 seafarers affected, creating a ripe environment for exploitation.

On April 9, Iran proposed a cryptocurrency-based toll system for transit, aiming to navigate around international sanctions. This announcement coincided with a naval blockade imposed by the US on April 14, further complicating the situation. The strait briefly opened on April 18, but incidents of gunfire from Iranian forces led to immediate reversals for at least two vessels, including the Sanmar Herald.

The scammers, posing as Iranian officials, capitalized on the confusion and desperation of shipping companies. They sent messages demanding payments in Bitcoin or Tether for purported transit clearances, claiming that these fees would ensure "unimpeded" passage through the strait. The Sanmar Herald fell victim to this scheme, paying fees before being fired upon by Iranian Revolutionary Guards, illustrating the dangerous intersection of fraud and geopolitical conflict.

MARISKS, a Greek maritime risk firm, quickly issued alerts to warn shipping companies about the fraudulent messages. They emphasized the importance of verifying any communications through official channels to avoid falling prey to scams. The lack of a confirmed response from the Iranian government regarding these fraudulent activities raises questions about the effectiveness of maritime security in the region.

As the situation unfolds, the implications extend beyond individual shipping firms. The incident underscores the vulnerabilities in global supply chains, particularly in regions experiencing geopolitical instability. With oil prices already surging post-incident, the potential for increased operational costs and disruptions in logistics is significant. The International Transport Workers' Federation has also highlighted the welfare of seafarers, who are caught in the crossfire of these geopolitical tensions and scams.

• Shipping companies: Increased operational costs and potential losses from scams.
• Seafarers: Heightened risks and uncertainty regarding their safety and employment.
• Logistics firms: Disruptions in supply chains leading to delays and increased prices.
• Oil and gas markets: Volatility in prices due to supply chain disruptions and geopolitical tensions.
• Dubai's economy: As a shipping hub, it faces potential impacts on trade and tourism.

• Shipping firm responses: Monitor how companies adapt their security protocols and verify communications to prevent future scams.
• Geopolitical developments: Watch for any changes in US-Iran relations that could affect maritime security in the Strait of Hormuz.
• Cryptocurrency regulations: Keep an eye on how governments respond to the use of cryptocurrencies in scams and their implications for maritime operations.