DisclosureLens
GLOBALMalwareConstructionConstructionRansomwareDunghillRansom DemandedActor NamedData Leak ThreatenedData PublishedHigh

The Cannon Corporation

bd_a8d7c520be3f9002 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Sep 26, 2023

To disclose

—

Affected

Not disclosed

Linked

11 filings

Confidence

50%

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Dunghill 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: 2023-09-26
View aggregator listing on ransomware.liveView merged incident timeline

Source: Ransomware.live

Post text · scraped from the leak site

CannonDesign is a global architecture, engineering and consulting practice that provides services for a range of project types, including hospitals and medical centers, corporate headquarters and commercial office buildings, higher education and PK-12 education facilities, hotels and hospitality, mixed-use, sports facilities, and science and research buildings. In 2017 and 2019, Fast Company named CannonDesign one of the 10 most innovative architecture firms in the world.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Sep 26, 2023

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 11 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Show 6 more filings ↓up to 356d gap

Filing propagation · 11 filings · 8 states

View merged incident ↗
Leak SiteSep 26 · first · this page
Illinois State AG+310d
Indiana State AG+328d
Montana State AG+328d
Vermont State AG+328d
Massachusetts State AG+328d
Maine State AG+328d
New Hampshire State AG+328d
California State AG+328d
New Hampshire State AG+356d
Massachusetts State AG+356d

Pattern: first filing Sep 26, last Sep 16 (MA) — a 356-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 2023-04-10

dunghill

According to ransomware.live, Dunghill Leak is the data extortion site operated by the Dark Angels ransomware group, active since early 2023, targeting large enterprises across healthcare, finance, industrial, and technology sectors using a highly selective non-affiliate model, and responsible for a record-breaking $75 million ransom payment in 2024.

16 victims claimed globally16 tracked hereFull profile →