HackingProfessional ServicesProfessional ServicesStolen CredentialsData ExfiltratedCustomer Data InvolvedGovernment IDIdentity (basic)MediumContained

Klevorn & Company, P.C.

bd_ec9582dea9a7f7c8 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Feb 16, 2026

Filed

May 8, 2026

To disclose

—

Affected

3state residents only

Linked

5 filings

Confidence

66%

Full breach record for Klevorn & Company, P.C. →

Klevorn & Company, P.C. notified Nebraska AG of an unauthorized access to its IT network occurring on February 16, 2026. An actor accessed systems and copied files containing names and Social Security Numbers of 3 Nebraska residents. Klevorn notified law enforcement, engaged IT specialists, and provided 12 months of credit monitoring via TransUnion to affected individuals starting May 8, 2026.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >30d

Incident timeline

Feb 16, 2026

Begins

Feb 16, 2026

Discovered

May 8, 2026

Filed

This filing is one of 5 about the same incident.View merged incident

A leak claim by qilin about this victim predates this filing by 81 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siteqilinbd_9cdec91f5877c1252026-03-04 · +65dVerified by operator
Leak Siteqilinbd_4e577c45c0e330b52026-02-16 · +81dVerified by operator

Regulatory filings (2) · sorted by filing gap

Massachusetts State AGbd_1dcf16f74ab1d7562026-05-08Verified by operator
Indiana State AGbd_7ea083552a01ca482026-05-08Verified

Name: Klevorn & Company, P.C.
norm: klevorn
Domain: klevornco.com

Name: Klevorn & Company, P.C.
norm: klevorn
Domain: klevornco.com
Industry: Professional Servicesllm

Discovered: Feb 16, 2026
Breach occurred: Feb 16, 2026
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: May 8, 2026
Affected individuals: 3state-resident count only
Data types: Government IDIdentity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: Provided written notice of this incident to relevant state and federal regulators
Initial access: valid_credentials

During the incident: Engaged IT security specialists to investigate
Notified federal law enforcement
Provided access to credit monitoring services for twelve (12) months through Transunion
Provided impacted individuals with guidance on how to better protect against identity theft and fraud
Changes made: Implementing additional safeguards and training to its employees
Reviewing and enhancing policies and procedures
Source: Quoted from the filing itself, not independently verified.

Compliance flags: Leak >30d
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 · 3 filings · 3 states

View merged incident ↗

Massachusetts State AGMay 8 · first

Indiana State AGMay 8 · first

Nebraska State AGMay 8 · 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/8d71cb63-f3d7-41c2-bae6-9d147821717f.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 8, 2026
Raw hash: 72bdc703f0ed05d74f834eaf10c016267d419f85e86b0cbc73c99aebb12810a4

Linked disclosures

Ransomware claims (2)

Regulatory filings (2) · sorted by filing gap

Reporting entityKlevorn & Company, P.C.

Victim entityKlevorn & Company, P.C.

Incidentdiscovered Feb 16, 2026

Stated responseEngaged IT security specialists to investigate

ComplianceLeak >30d

Extraction provenanceno artifact recorded

Source provenancenebraska.gov