high severity October 22, 2025 · 4 min read Unverified claim — what this is

ATIRG Listed by Medusa Ransomware Group

If you are a customer of Atirg, here’s what is being claimed, and what it would mean for you.

Atirg was listed on Medusa's leak site. Medusa claims to have stolen internal data. This is the group's claim, not a confirmed finding.

On October 22, 2025, the Medusa ransomware group added the French Guiana medical nonprofit ATIRG to its public leak site, claiming that internal files had been exfiltrated from the organization responsible for dialysis and kidney care across Cayenne, Kourou, and Saint-Laurent-du-Maroni.

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What Public Reporting Shows

Available reporting describes ATIRG as the Association pour le Traitement de l’Insuffisance Rénale en Guyane, a nonprofit founded in 1981 that operates autodialysis centers and supports patients with chronic renal failure through medical care, training, and nutritional programs. The Medusa leak page states that the group exfiltrated internal files during a ransomware attack. No precise victim count has been disclosed, and the exact volume or specific categories of data remain unclear from the public posting. The listing appeared on the Medusa leak site on October 22, 2025, following the group’s standard pattern of publishing victim details after initial contact and exfiltration.

Why This Matters for You and Your Family

When a healthcare organization like ATIRG suffers a breach, the people whose records it holds—patients, family members, and staff—face direct risk. Medical files often contain names, addresses, dates of birth, national identification numbers, treatment histories, and sometimes financial or insurance details. Once those records leave the organization’s control, they can appear in underground markets where identity thieves, fraudsters, and extortionists shop for fresh data. Even if you live far from French Guiana, shared service providers, insurers, or family connections can link your information to the incident. A single exposed medical record can fuel long-term identity theft that affects credit, employment, government benefits, and even insurance eligibility for you or your children.

The Doxxing and Identity-Chain Implications

Medical breaches rarely stop at one dataset. Public reporting indicates that attackers frequently combine leaked healthcare records with information from other breaches to build detailed identity chains. An email address found in the ATIRG files can be matched to gaming accounts, social-media handles, phone numbers, and family-member profiles. This linkage turns a single breach into a roadmap for doxxing, targeted phishing, or account takeovers. Credential leaks of this nature often cascade into gaming platforms, where children’s accounts become entry points for further harassment or extortion because the same password or recovery email was reused. The speed at which these chains form leaves most families unaware until damage appears in the form of fraudulent loans, impersonation, or unwanted exposure of private health conditions.

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What the free scan actually returns

Sample resultyou@email.comIllustrative — not a real person

Found on people-search siteswe remove these

These listings are live, public, and legal to remove — and removing them is what we do.

value redacted in this sampleage, relatives, address historySpokeo

value redacted in this samplephone, household, property recordsBeenVerified

value redacted in this sample580 companies checked

Found in breach recordsverifiedreported — unverified

Each record is labeled: confirmed breach data, or an attacker’s claim no one has verified.

verifiedvalue redacted in this samplepassword + phone · 2024telecom breach

unverifiedvalue redacted in this sampleclaimed in ransomware listing · 2026leak-site claim

Leaked data cannot be deleted from the internet — anyone claiming otherwise is lying. Broker listings can be removed. We do the second, and show you exactly what to fix from the first.

Report details & sourcing

Attributed to Medusa · 515 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed October 22, 2025

Last reviewed August 8, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Threat-actor tracker

Medusa — 515 incidents tracked

Every breach we've attributed to Medusa, in one running log. See who else they've hit →

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