This record tracks a ransomware attack claimed by the
kairos group against
Le Centre National de l'Expertise Hospitalière (CNEH). It collects the publicly disclosed attack details — sector, location and
timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAP
Window Zero is the time the breach stayed in the open before
anyone said so — the gap between when the attack was first discovered
on the operator's leak site (t1) and when it was publicly disclosed (t2).
The wider this window, the longer victims, staff and customers were exposed with no warning.
0days open
t1 · Published
t2 · Pending
Business Category
Healthcare / Pharma
Indexed by Breach House
September 30, 2026
Leak Status
pending
checked 2026-09-30
Disclosed / Notified
Not disclosed yet
Attack Summary
Le Centre National de l'Expertise Hospitalière (CNEH) is a French healthcare institution specializing in clinical expertise, medical assessment, and specialized hospital services within the Medicine sector. The organization operates nationally, providing critical evaluations and technical support to healthcare professionals and patient care pathways across France. Within threat-intelligence indexing, CNEH is documented as a ransomware victim associated with the threat actor Kairos. This listing reflects its inclusion in cybersecurity threat databases due to its role as an affected entity in a ransomware incident involving Kairos, without disclosing specific technical or operational details of the event.
Leak Screenshots
1 CAPTURED
Captured directly from the operator's leak site by our collector, last checked 2026-09-30. Verdict evidence: [M1] Data Size & Created 645 GB • 09/30/2026
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Dark Web Exposure
Cross-referenced against HaveIBeenRansom's dark-web index of ransomware leaks, breaches & infostealer logs.
0
found in Infostealer logs
0
found in Traditional breaches
0
found in Ransomware leaks
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Full exposure is locked
See every breached email, the internal-vs-external split and each leak source behind this victim.
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This ransomware victim record reflects information published on the operator's leak site.
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