Maritime Computer Emergency Response Team ADMIRAL dataset ADMIRAL dataset

Publicly disclosed information for this event

Index Number:
The website of a shipyard is victim of a denial of service attack claimed by a hacktivist group.
Day Month Year Country Activity Incident Type
16 August 2023 Poland Shipyard Denial of Service


According to sources, the victim shipyard was targeted by a pro-Russian "hacker" group during a Distributed Denial of Service attacks campaing. Other infrastructures and organisations were targeted during the same attack.

The attack resulted in short service disruptions.


PGZ Stocznia Wojennena Sp. z o. o.

Claimed/Reported Threat Actor

Net-Worker Alliance



Main impact



Recommendations to Shipyard to reduce Denial of Service risks:

  • Implement rate limiting and traffic filtering to mitigate the impact of incoming malicious traffic.
  • Check with your IT service provider that the resilience of its systems against such attack was tested.
  • Regularly monitor network traffic and set up alerting for unusual patterns or spikes.
  • Diversify your server locations and use failover systems to ensure service availability in case of an attack.
  • Establish an incident response plan to quickly mitigate and recover from DoS attacks.
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Disclaimer: the data are provided as is. France Cyber Maritime and the M-CERT take no responsibility for the soundness, quality, precision, nor the eventual attribution made by the referenced URLs. We give a lot of respect and support to the victims of attacks. Yes, there are no common and shared incident IDs in cyber (for now!).
Files generated on Thursday, 02nd November 2023.
ADMIRAL is licensed under the Creative Commons CC-BY-NC license. Copyright © France Cyber Maritime 2023.