DisclosureLens
GLOBALMalwareHospitalityHospitalityRansomwareRadarRansom DemandedActor NamedMedium

Compagnie des Guides de Chamonix

bd_8b826e8548a458fe · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Aug 15, 2025

To disclose

—

Affected

Not disclosed

Linked

2 filings

Confidence

50%
Full breach record for Compagnie des Guides de Chamonix →

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Radar on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.

Group activity: Hospitality and TourismDiscovered: 2025-09-11
View aggregator listing on ransomware.liveView merged incident timeline

Source: Ransomware.live

Post text · scraped from the leak site

Chamonix Office +33 (0)4 50 53 00 88, Maison de la montagne, 190 place de l'église, 74400 Chamonix Argentière Office +33 (0)4 50 54 17 94 , 24 Route du village, 74400 Argentière

Incident timeline — mostly unverified

? — ?

Breach window unknown

Aug 15, 2025

Claim posted

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

Claim → filing

—

Compliance clock

Not assessable

This filing is one of 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Filing propagation · 2 filings

View merged incident ↗
PressAug 15 · first
Leak SiteAug 15 · first · this page

Evidence ladder

Leak-site claimThis record

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filing

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source ceiling

  • actor name
  • victim claim
  • ransom/leak status
  • discovery date
  • materiality
  • notification
  • affected count
  • confirmed data types
  • compliance clock

The ✕ fields stay blank until a regulatory filing or victim disclosure lands.

About this groupFirst seen 2024-01-22

radar

According to ransomware.live, Radar (also known as Dispossessor), active since August 2023 and led by an actor called "Brain," was a RaaS group targeting small-to-mid-sized businesses across healthcare, education, finance, and transportation in over 14 countries; it was dismantled by an FBI-led international operation in August 2024 that seized 24 servers and 9 criminal domains.

24 victims claimed globally24 tracked hereFull profile →