Maritime Computer Emergency Response Team ADMIRAL dataset ADMIRAL dataset

Publicly disclosed information for this event

Index Number:
A pleasure boat manufacturer is victim of a cyberattack, leading to the obligation to stop the [...]
Day Month Year Country Activity Incident Type
13 June 2023 United States Shipyard Undisclosed


The victim confirmed a significant financial loss of approximately $85 million resulting from a recent cybersecurity incident. The incident, announced on June 13, affected the company's systems and some facilities. Although attacking ransomware group wasn't explicitly disclosed, it necessitated halting operations in certain locations while experts and law enforcement addressed the situation.

The CEO later revealed that the cyber incident had a substantial impact on the company's Q2 financial outlook. This "IT security incident" led to lower-than-expected Q2 financial results and took nine days to fully recover, causing critical disruptions. The incident would reduce full-year earnings by an estimated $60 to $70 million, with Q2 revenue being impacted by as much as $85 million.

The cyberattack had significant repercussions, particularly affecting segments outside of propulsion and engine parts.


Brunswick Corporation

Claimed/Reported Threat Actor




Main impact



Recommendations for Shipyard to reduce Undisclosed risks:

No advice yet available to prevent 'Undisclosed': stay tuned!

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Files generated on Monday, 11th December 2023.
ADMIRAL is licensed under the Creative Commons CC-BY-NC license. Copyright © France Cyber Maritime 2023.