Iran recently announced a $1 per barrel Bitcoin toll for oil tankers passing through the Strait of Hormuz. Scammers immediately impersonated Iranian government officials and sent false messages to ship owners. On April 18, at least one oil tanker that had already paid the scammers in Bitcoin was intercepted by Iranian vessels and forced to turn back while attempting to pass through the strait. Greek maritime risk management company MARISKS warned that criminals are demanding payment from ship owners in Bitcoin or Tether, instructing them to submit documents for evaluation by purported Iranian security services. MARISKS confirmed that these requests are scams, and the identities of the affected companies are currently unknown.