DisclosureLens
GLOBALMalwareHealthcareHealthcareRansomwareNitrogenRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

LumioDental

bd_623f450050275416 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Feb 5, 2026

To disclose

—

Affected

Not disclosed

Linked

2 records

Confidence

50%
Full breach record for LumioDental →

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Nitrogen 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: 2026-02-05

Source: Ransomware.live

Post text · scraped from the leak site

A company that manages a network of dental clinics.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Feb 5, 2026

Claim posted

—

Corroborated · see linked filings

This record's own dates cannot anchor compliance clocks; see the linked filings.

Claim → filing

—

Compliance clock

Not assessable

This leak-site claim is one of 2 records about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

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 2023-03-29

nitrogen

According to ransomware.live, Nitrogen began as a malware loader in 2023 used to deliver BlackCat/ALPHV ransomware, then evolved into a fully independent ransomware operator by mid-2024, operating its own strain derived from leaked Conti 2 builder code and conducting double-extortion attacks primarily linked to Eastern European infrastructure.

49 victims claimed globally49 tracked hereFull profile →