DisclosureLens
GLOBALMalwareFinancial ServicesFinanceRansomwareLynxRansom DemandedActor NamedMedium

BÜCHNER BARELLA Holding

bd_151e7f00d80d9095 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Filed

Aug 27, 2025

To disclose

Affected

Not disclosed

Linked

2 filings

Confidence

50%
Full breach record for BÜCHNER BARELLA Holding

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: Financial ServicesDiscovered: 2025-08-29

Source: Ransomware.live

Post text · scraped from the leak site

BüchnerBarella gehört deutschlandweit zu den führenden, inhabergeführten technischen Industrie-Versicherungsmaklern. Und das bereits seit 1922. Wichtig ist uns, für Sie persönlich da zu sein, um für Sie und Ihr Unternehmen in allen Phasen – von der Risikoanalyse bis zur schnellen Abwicklung im Schadensfall – stets das Beste rauszuholen.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Aug 27, 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 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 ↗
PressAug 17 · first
Leak Site+10d · this page

Pattern: first filing Aug 17, last Aug 27 — a 10-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 2023-05-22

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 →