Cyberattacks Disrupt Two Oil Tankers, Prompting Coast Guard and FBI Boardings

· Original article ↗

Summary

Coast Guard and FBI personnel boarded two tankers after reported cyberattacks disrupted them. Investigators found evidence of a malicious actor on one vessel but have not established whether the incidents are linked or who was responsible.

Key points

  • The VL Prosperity was reportedly attacked on August 7 while traveling toward Galveston; Iranian media alleged hackers interfered with engine, navigation, cargo and communications systems.
  • Coast Guard cyber specialists, law enforcement and FBI personnel boarded the VL Prosperity for four days after it reached the Gulf of Mexico.
  • A second tanker was boarded on August 24; investigators are still determining whether the incidents are connected.
  • Coast Guard Cyber Command said investigators found evidence of a malicious actor on the vessel, but the inspection uncovered nothing suggesting it was unsafe to operate.
  • The Coast Guard has not linked the incident to Iran. Responsibility, including any state-actor involvement, remains undetermined.
  • A former Coast Guard cyber official cautioned that degrading individual systems enough to hinder safe operation may be more realistic than taking full control of a tanker.
  • The article highlights maritime exposure from aging OT systems, satellite communications and connected devices, and notes risks including GPS spoofing and AIS manipulation.

Article Details

Victim Organization
VL Prosperity; the second vessel is not named
Incident Type
Reported cyberattack disrupting two oil tankers during their voyages
Operational Impact
The VL Prosperity was reportedly disrupted. An Iranian news report, citing a crew member, alleged interference with engine coolant flow, engine speed, fuel delivery, navigation and cargo systems, and communications for roughly 30 hours. Investigators found evidence of a malicious cyber actor on the vessel's systems, but the Coast Guard said the inspection uncovered nothing suggesting it was unsafe to operate.
Claim Status
alleged

People

Countries

Industries