HackingProfessional ServicesProfessional ServicesCustomer Data InvolvedIdentity (basic)LowContained

Cohn Lifland Pearlman Herrmann and Knopf

bd_f56523111d806952 · schema v1 · pii pii-v2

Severity

Low

Discovered

Oct 3, 2025

Filed

Oct 14, 2025

To disclose

—

Affected

Not disclosed

Linked

3 filings

Confidence

65%

Full breach record for Cohn Lifland Pearlman Herrmann and Knopf →

Cohn Lifland Pearlman Herrmann & Knopf, LLP reported an unauthorized network access occurring on or about March 27, 2025. The firm engaged outside cybersecurity professionals to investigate and contain the incident. The investigation concluded on or about October 3, 2025, revealing that unauthorized parties accessed files containing full names and potentially other personal information. The firm is offering one year of complimentary IDX identity protection services to affected individuals.

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Leak gap clock⏱ Leak >90d

Incident timeline

undetected · 190 days

Mar 27, 2025

Begins

Oct 3, 2025

Discovered

Oct 14, 2025

Filed

This filing is one of 3 about the same incident.View merged incident

A leak claim by akira about this victim predates this filing by 172 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteakirabd_c7e10f98a17cd7472025-04-25 · +172dVerified by operator

Regulatory filings (1) · sorted by filing gap

Massachusetts State AGbd_d63ad22a95612baf2025-10-14Candidate

Name: Cohn Lifland Pearlman Herrmann and Knopf
norm: cohn lifland pearlman herrmann and knopf
Domain: clphk.com

Name: Cohn Lifland Pearlman Herrmann and Knopf
norm: cohn lifland pearlman herrmann and knopf
Domain: clphk.com
Industry: Professional Servicesllm

Discovered: Oct 3, 2025
Breach occurred: Mar 27, 2025
Undetected for: 190 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Worked to contain the incident
Launched a thorough investigation
Engaged leading outside cybersecurity professionals to secure the environment and to identify the scope of what personal information, if any, was involved
Changes made: Offering a complimentary year membership of IDX identity protection services
Continually evaluate and modify our practices and internal controls to enhance the security and privacy of your information
Source: Quoted from the filing itself, not independently verified.

Compliance flags: Leak >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 2 filings · 2 states

View merged incident ↗

Massachusetts State AGOct 14 · first

Nebraska State AGOct 14 · first · this page

Evidence ladder

Leak-site claim

Attacker assertion only. Establishes: claim date, group, alleged victim.

Press / market report

Unlocks: incident narrative, operational impact. Still no compliance clock.

State AG / regulator filingThis record

Unlocks: discovery date, data types, affected count, compliance clock.

SEC 8-K / victim statement

Unlocks: materiality, stated response, full audit trail. Ceiling removed.

Source URL: https://nebraska.gov/ago/data-breach/documents/285b5190-2ee2-48ca-9d32-5f3f98d54a4c.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Oct 14, 2025
Raw hash: bf1ba1c09fe16a1481dbb93a59ade6d2eb5d33aa659a1709c0e3765c07ce3025

Linked disclosures

Ransomware claims (1)

Regulatory filings (1) · sorted by filing gap

Reporting entityCohn Lifland Pearlman Herrmann and Knopf

Victim entityCohn Lifland Pearlman Herrmann and Knopf

Incidentdiscovered Oct 3, 2025

Stated responseWorked to contain the incident

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancenebraska.gov