Coast Guard, FBI Board Texas-Bound Tankers After Confirmed Cyber Breach Of Supertanker VL Prosperity
CBS released video Wednesday showing U.S. Coast Guard and FBI personnel boarding the Texas-bound supertanker VL Prosperity in the Atlantic as part of a probe into a suspected cyber breach.[1]
Federal authorities now say a foreign actor compromised the onboard networks of two Texas-bound oil tankers in August, officials told CBS.[2] Rear Adm. Amy Grable said Coast Guard teams boarded VL Prosperity on August 21 for a four-day inspection and found malicious activity on the ship's IT systems.[3]
VL Prosperity is a 1,093-foot, Liberian-flagged crude supertanker bound for Galveston that left Egypt's Sidi Kerir terminal on August 1 and can carry about 2.3 million barrels.[3] Iranian state media reported hackers seized control on August 7 in the Strait of Gibraltar and said they altered propulsion, cooling and fuel systems and cut communications for about 30 hours.[3] Rob Lee, CEO of industrial cyber firm Dragos, told CBS the technical details reported by Iranian media are "spot on" and realistic, but he said formal attribution remains unestablished.[3]
Initial CBS articles described the compromise as potential or suspected before officials publicly named a foreign actor, a shift that intensified the security implications.[4] CBS later confirmed a foreign actor breached the tankers' networks.[2] CBS also released video showing Coast Guard and FBI teams boarding one of the vessels during the joint investigation.[1] Investigators said they were concerned IT systems were linked to navigation and propulsion, but boarding teams did not find the ship unsafe to navigate at the time of inspection.[3]
Show source details & analysis (5 sources)
📌 Key Facts
- On September 16, 2026, CBS published video showing Coast Guard personnel and FBI agents boarding a Texas‑bound commercial oil tanker in the Atlantic as part of an investigation into a suspected cyber incident (Coast Guard personnel and FBI agents).
- Federal authorities have confirmed that a foreign actor compromised the onboard networks of two oil tankers that were heading toward Texas in August 2026 (two oil tankers).
- One of the affected vessels was identified as the VL Prosperity, a 1,093‑foot Liberian‑flagged crude oil supertanker bound for Galveston that departed Egypt’s Sidi Kerir terminal on August 1, 2026 and can carry about 2.3 million barrels (VL Prosperity).
- Iranian state media, including Mehr News Agency, reported the VL Prosperity was attacked on August 7, 2026 while transiting the Strait of Gibraltar and alleged hackers accessed propulsion, navigation and cargo systems, altered engine cooling and speed, interfered with fuel systems and cut communications for about 30 hours — claims CBS relayed in its reporting (Mehr News Agency).
- Rear Adm. Amy Grable of U.S. Coast Guard Cyber Command said Coast Guard and FBI teams boarded the VL Prosperity on August 21, 2026 for a four‑day operation and “did find malicious cyber activity” on the ship’s information‑technology systems (Rear Adm. Amy Grable).
- Grable said investigators were concerned that IT systems were connected to operational systems controlling propulsion, navigation and other critical functions, but that boarding teams did not find evidence the vessel had become unsafe to navigate at the time of inspection (operational systems).
- Industrial cybersecurity firm Dragos’s CEO Rob Lee told CBS that the technical details published by Iranian media about changes to engine cooling, speed and fuel systems are “spot on” and realistic for a vessel of this type, while warning that formal attribution has not been established (Dragos CEO Rob Lee).
- CBS reported the Coast Guard Cyber Protection Team has conducted roughly 40 to 50 similar missions in the past year to assess vessel cyber risks (Coast Guard Cyber Protection Team).
- CBS’s coverage emphasizes that the FBI and Coast Guard are jointly investigating whether the tanker “may have been taken over by a cyberattack,” and video released September 16, 2026 shows the boarding as part of that probe (FBI and Coast Guard).
📰 Source Timeline (5)
Follow how coverage of this story developed over time
- CBS aired video on September 16, 2026, showing U.S. Coast Guard and FBI personnel physically boarding a Texas-bound giant oil tanker in the Atlantic as part of the cyberattack investigation.
- The segment emphasizes that the FBI and Coast Guard are jointly investigating whether the tanker "may have been taken over by a cyberattack" while en route to Texas.
- The report highlights that Iranian state media claim hackers had control of the ship's propellers, raising concern that such large tankers could potentially be used as weapons.
- Article identifies one of the affected vessels as the VL Prosperity, a 1,093-foot Liberian-flagged crude oil supertanker capable of carrying about 2.3 million barrels and bound for Galveston, Texas, that departed Egypt's Sidi Kerir terminal on August 1, 2026.
- Iran's Mehr News Agency reported on August 20, 2026 that the VL Prosperity was attacked on August 7, 2026 while transiting the Strait of Gibraltar, alleging hackers accessed propulsion, navigation and cargo systems, reduced engine cooling flow, increased engine speed and interfered with fuel systems, cutting communications for about 30 hours.
- Rear Adm. Amy Grable, commander of U.S. Coast Guard Cyber Command, confirmed in a CBS News interview that Coast Guard and FBI teams boarded the VL Prosperity on August 21, 2026 for a four-day operation and "did find malicious cyber activity" on the ship's information-technology systems.
- Grable said investigators were concerned about IT systems being connected to operational systems controlling propulsion, navigation and other critical functions, but that boarding teams did not find evidence the vessel had become unsafe to navigate at the time of their inspection.
- Industrial cybersecurity firm Dragos CEO Rob Lee said the technical details published by Iranian media about changes to engine cooling, speed and fuel systems are "spot on" and realistic for such a vessel, while cautioning that attribution for the attack has not yet been established.
- The article notes the Coast Guard Cyber Protection Team has conducted roughly 40 to 50 similar missions in the past year to assess cyber risks on vessels.
- Federal authorities have now confirmed that a foreign actor compromised the network of two oil tankers that were heading toward Texas in August 2026.
- The earlier incident involved not just one but two Texas-bound oil tankers whose onboard networks were breached.
- CBS characterizes the compromise as definitively attributed to a foreign actor, upgrading prior descriptions of a 'potential' or 'suspected' compromise.
- CBS published video images on Wednesday, September 16, 2026, showing Coast Guard personnel and FBI agents boarding the Texas‑bound commercial oil tanker in the Atlantic.
- The video segment reiterates that the boarding occurred last month after officials detected signs that the ship's network may have been compromised by a foreign actor.
- The Coast Guard’s confirmation of a potential foreign cyber compromise of the vessel’s network is restated in broadcast form but without additional operational specifics beyond the earlier text report.