DisclosureLens
GLOBALMalwareConstructionConstructionRansomwareLynxRansom DemandedActor NamedMedium

Lake HVAC

bd_2bde476f2dc696e5 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Apr 15, 2025

To disclose

Affected

Not disclosed

Confidence

50%
Full breach record for Lake HVAC

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Lynx 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: ConstructionDiscovered: 2025-04-15

Source: Ransomware.live

Post text · scraped from the leak site

Lake HVAC was founded in 1975. For more than 40 years, Lake HVAC has built and maintained quality HVAC systems for industrial, commercial, institutional and high tech/biotech clients in Massachusetts and New Hampshire. We work with general contractors, developers, facilities departments and engineering firms to ensure that our clients receive efficient, reliable, and cost-effective solutions for their HVAC systems. Our professional experience in HVAC installation, service and design ensures your project will maintain long-term functionality, efficiency and return on facility investment.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Apr 15, 2025

Claim posted

No filing yet · watching

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

Claim → filing

Compliance clock

Not assessable

Tracked as a single-filing incident — the only disclosure on record for this event so far.Unverified claimView incident

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.

No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.

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 2023-05-22

lynx

According to ransomware.live, Lynx is a ransomware-as-a-service operation that emerged in mid-2024 as a rebrand of INC Ransomware (whose source code was sold for $300,000 on the RAMP forum), claiming ~300 victims across manufacturing, business services, technology, and transportation with an 80/20 profit split for affiliates.

422 tracked hereFull profile →