servmarmg.cl
ms13089 listed this organization on its leak site on Aug 15, 2026.
- Listing date
- Aug 15, 2026
- Attack date
- Aug 15, 2026
Listing text
Empresa con más de 25 años de experiencia en el rubro marítimo, orientada a ejecutar operaciones con estándares de calidad, control de riesgo y tiempos de respuesta consistentes...
About the group
ms13089 posted its first listing on Dec 18, 2025 and has listed 5 organizations to date.
MS13089 is a newly emerged ransomware group (first observed December 2025) that named itself after a 2013 Microsoft Security Bulletin, claiming a handful of victims including a law firm, operating primarily as a double-extortion actor.
Learning center
What does this listing mean?
Ransomware groups move data out of the organization before encrypting systems and threaten to publish it if the ransom is not paid. This method is called double extortion.
The listing shows that the group claims to have targeted the organization. Whether the data was published is shown by the later status of the listing.
What should you do if your organization is listed on a leak site?
- Record the listing and any published sample files; do not visit the leak site from the corporate network.
- Isolate affected systems and preserve logs without deleting them.
- Determine which data left the organization; if personal data is involved, review notification obligations with your legal team.
- Make any decision about the ransom demand together with legal, management and incident response.
- Do not bring systems back online before the attacker’s entry point is closed.
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