DisclosureLens
GLOBALMalwareHealthcareHealthcareRansomwareCrypto24Ransom DemandedActor NamedMedium

ARTEMIS HEALTHCARE I HEDGECO, LLC

bd_446526c32bfe1735 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Jun 18, 2025

To disclose

Affected

Not disclosed

Linked

3 filings

Confidence

50%
Full breach record for ARTEMIS HEALTHCARE I HEDGECO, LLC

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Crypto24 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: HealthcareDiscovered: 2025-07-16

Source: Ransomware.live

Post text · scraped from the leak site

It contains sensitive personal data, including medical records, official documents, and imaging files of millions of patients, as well as various databases.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Jun 18, 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 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Filing propagation · 3 filings · 2 states

View merged incident ↗
Leak SiteJun 18 · first · this page
HHS OCR+188d

Pattern: first filing Jun 18, last Dec 23 (TN) — a 188-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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 2023-12-13

crypto24

According to ransomware.live, Crypto24 is a double-extortion ransomware-as-a-service group that surfaced on the RAMP forum in mid-2024, targeting large organizations in financial services, healthcare, manufacturing, and technology across Asia, Europe, and North America, with notable victims including CMC Group, Vietnam's second-largest ICT conglomerate.

47 victims claimed globally47 tracked hereFull profile →