DisclosureLens
GLOBALMalwareFinancial ServicesFinanceRansomwareInc RansomRansom DemandedActor NamedMedium

JLK Rosenberger

bd_ae2d6ce29e987540 · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Jan 28, 2026

To disclose

—

Affected

Not disclosed

Linked

2 filings

Confidence

50%
Full breach record for JLK Rosenberger →

Threat-actor claim — not a regulatory filing

This row is a claim by the ransomware group INC Ransom 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: 2026-01-28
View aggregator listing on ransomware.liveView merged incident timeline

Source: Ransomware.live

Post text · scraped from the leak site

JLK Rosenberger LLP, Certified Public Accountants: A full service accounting and business advisory firm with offices in Irvine and Glendale, California and Dallas, Texas. The firm is recognized as a Top 400 Firm by Inside Public Accounting and one of the largest auditors of insurance entities in the United States as ranked by Aon and AM Best We have 300GB of data. Internal mail, accounting, company customer information and we will publish all the information next week.

Incident timeline — mostly unverified

? — ?

Breach window unknown

Jan 28, 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 SiteJan 28 · first · this page
Indiana State AG+70d

Pattern: first filing Jan 28, last Apr 8 (IN) — a 70-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.