DisclosureLens
GLOBALMalwareProfessional ServicesProfessional ServicesRansomwareWorldleaksRansom DemandedActor NamedMedium

Birtcher Anderson & Davis

bd_b871da01d8d7f69e · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Apr 27, 2026

To disclose

—

Affected

Not disclosed

Linked

2 filings

Confidence

50%
Full breach record for Birtcher Anderson & Davis →2 incidents on file

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group Worldleaks 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: Business ServicesDiscovered: 2026-04-28
Listing address (not linked): https://worldleaksartrjm3c6vasllvgacbi5u3mgzkluehrzhk2jz4taufuid.onion/companies/6850558890View merged incident timeline

Source: Ransomware.live

Post text · scraped from the leak site

A fully integrated commercial real estate investment and management company

Incident timeline — mostly unverified

? — ?

Breach window unknown

Apr 27, 2026

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 ↗
Leak SiteApr 27 · first · this page
Massachusetts State AG+77d

Pattern: first filing Apr 27, last Jul 13 (MA) — a 77-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 2022-06-23

worldleaks

According to ransomware.live, World Leaks emerged in January 2025 as a rebrand of the Hunters International ransomware operation, shifting its focus from file encryption to solely stealing sensitive data and threatening to leak it unless a ransom is paid

187 tracked hereFull profile →