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Ransomware victim disclosure

All victims

KIU System Solutions

Claimed by Apos · listed 1 year ago

16m
Age
since listed · data leaked

Status timeline

  1. ListedMar 17, 2025
  2. Data leakeddate unknown

At a glance

Group
Apos
Status
Data leaked
Country
Argentina
Listed on leak site
Mar 17, 2025

About the victim

AI dossier — public-source company profile

KIU System Solutions is an airline technology company founded in 2005 that provides integrated software solutions for the aviation industry, including GDS (Global Distribution System), PSS (Passenger Service System), e-commerce platforms, loyalty programs, and AI-powered customer support tools. Headquartered in Montevideo, Uruguay, they serve airlines and travel agencies across 80+ countries.

Industry
Airline Technology & Travel Distribution Systems
Address
2141, 12th Floor, Office 1207, Montevideo, Uruguay 11800
Founded
2005

Attack summary

Severity: high — Confirmed data exfiltration by established ransomware group against critical airline infrastructure provider serving 45,000+ agencies globally. Potential exposure of customer PII, payment data, and sensitive operational information for airlines and travel agencies.

The APOS ransomware group claims to have compromised KIU System Solutions and exfiltrated data. The group lists the victim with a purported ransom demand of $23.4 million USD, though no specific details on attack method or data types are disclosed in the post.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • customer databases
  • airline operational data
  • travel agency information
  • passenger records
  • payment/transaction data

What the group claims

🌐 kiusys.com💲 23400000📍 Paraguay

Sources

Source

Indexed 1 year ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About apos

The apos ransomware group is a relatively new threat actor that emerged in April 2024, primarily motivated by financial gain through ransomware operations targeting organizations across multiple countries and sectors. Given their recent emergence and limited public documentation, their country of origin and affiliations with other ransomware groups remain unknown, though their targeting pattern suggests they may operate independently rather than as part of a larger ransomware-as-a-service ecosystem. Based on available data, the group has successfully compromised 16 known victims across Brazil, the United States, Argentina, Canada, and France, with a particular focus on technology, healthcare, business services, and manufacturing sectors, though their attack methodology and specific tools remain undocumented by major threat intelligence firms. No notable high-profile campaigns or major ransom payments have been publicly reported by CISA, FBI, Mandiant, or other reputable security researchers, likely due to the group's recent emergence and relatively small victim count. The group appears to remain active as of current reporting, though their limited public footprint suggests they are either a smaller operation or have managed to maintain a low profile in the threat landscape. The group has been linked to 16 public disclosures across our corpus. First observed on a leak site on April 29, 2024; most recent post August 15, 2025. The operation is currently inactive.

Timeline of this disclosure

  • March 17, 2025KIU System Solutions listed by aposon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Technology sector, which has 3,549 disclosures indexed across all operators we track. Geographically, KIU System Solutions is reported in Argentina, a country with 29 ransomware disclosures in our corpus.

If your organisation is affected

A listing by apos means KIU System Solutions appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Monitor for the data appearing on apos's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.