HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)MediumContained

Kerkering, Barberio & Co., Certified Public Accountants

bd_f12034b394a33d47 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 27, 2025

Filed

Mar 13, 2026

To disclose

—

Affected

2state residents only

Linked

3 filings

Confidence

66%

Full breach record for Kerkering, Barberio & Co., Certified Public Accountants →

Kerkering, Barberio & Co., a CPA firm, notified the Nebraska Attorney General of a cybersecurity incident discovered on May 27, 2025. An unauthorized user accessed four email accounts, potentially exposing names, SSNs, DOBs, and health member IDs of two Nebraska residents. KB isolated accounts, engaged forensic and notification vendors, and mailed notices on March 13, 2026, offering 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

May 27, 2025

Begins

May 27, 2025

Discovered

Mar 13, 2026

Filed

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

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

Maine State AGbd_87bdbb24481860602026-03-13Candidate
New Hampshire State AGbd_fb5c88001a8620062026-03-12 · +1dVerified

Name: Wilson, Elser, Moskowitz, Edelman & Dicker LLP
norm: wilson elser moskowitz edelman dicker
Domain: wilsonelser.com

Name: Kerkering, Barberio & Co., Certified Public Accountants
norm: kerkering barberio co certified public accountants
Industry: Professional Servicesllm

Discovered: May 27, 2025
Breach occurred: May 27, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 13, 2026
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDHealth (basic)
Data elements: Social Security numberDate of birth
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: Notified the Nebraska Office of the Attorney General
Initial access: valid_credentials

During the incident: Isolated the affected email accounts
Engaged a specialized third-party cybersecurity firm to assist with securing the email accounts
Engaged a third-party data mining vendor to conduct a comprehensive review of the potentially accessed data
Engaged a third-party notification vendor to assist with notifying the affected individuals
Disconnected all access to the impacted email accounts
Changed administrative credentials
Restored operations in a safe and secure mode
Enhanced the security measures
Changes made: Offered 12 months of complimentary credit monitoring and identity theft restoration services through Cyberscout
Provided guidance on how to better protect against identity theft and fraud
Provided information on how to place a fraud alert and security freeze on one’s credit file
Provided contact details for the national consumer reporting agencies
Provided information on how to obtain a free credit report
Source: Quoted from the filing itself, not independently verified.

Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

New Hampshire State AGMar 12 · first

Maine State AG+1d

Nebraska State AG+1d · 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/1c0cc890-2c4a-491b-bf5d-639b01b29d96.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 13, 2026
Raw hash: 08d67cada54e29ec6c2f36b69cf60d99cd77cb59e01d9e4a79dd6d8497a67087

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityWilson, Elser, Moskowitz, Edelman & Dicker LLP

Victim entityKerkering, Barberio & Co., Certified Public Accountants

Incidentdiscovered May 27, 2025

Stated responseIsolated the affected email accounts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov