HackingGovernment IDIdentity (basic)FinancialMediumContained

Quest Resource Holding Corporation

bd_f563a12e0d165ebb · schema v1 · pii pii-v2

Severity

Medium

Discovered

Jun 23, 2025

Filed

Aug 8, 2025

To disclose

—

Affected

2state residents only

Linked

2 filings

Confidence

66%

Full breach record for Quest Resource Holding Corporation →

Quest Resource Holding Corporation notified the Nebraska AG of a data breach involving its third-party auditor, Semple, Marchal & Cooper, LLP. Unauthorized access occurred in February 2025, exposing names, SSNs, and W-2 data for 2 Nebraska residents. Quest notified employees in August 2025 and offered one year of credit monitoring.

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Incident timeline

undetected · 142 days

Feb 1, 2025

Begins

Jun 23, 2025

Discovered

Aug 8, 2025

Filed

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

Texas State AGbd_2850fa3cc9e6ad882025-08-12 · +4dCandidate

Name: Quest Resource Holding Corporation
norm: quest resource

Name: Quest Resource Holding Corporation
norm: quest resource

Discovered: Jun 23, 2025
Breach occurred: Feb 1, 2025
Undetected for: 142 daysoccurrence → discovery
Materiality determined: —
Notification sent: Aug 8, 2025
Affected individuals: 2state-resident count only
Data types: Government IDIdentity (basic)Financial
Attack vector: Third-Party / Supply Chain
MITRE ATT&CK: T1195 Supply Chain Compromise
Threat actor: External
Third party: via Semple, Marchal & Cooper, LLP

During the incident: Commenced an investigation with assistance from a third-party cybersecurity firm
Analyzed the content of the Quest files involved in SMC’s incident
Notified its current employees of the incident
Sent notifications via U.S. First-Class mail to its current and former employees
Offered one year of complimentary credit monitoring, fraud consultation, and identity theft restoration services through Experian
Changes made: Offered one year of complimentary credit monitoring, fraud consultation, and identity theft restoration services through Experian
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 · 2 filings · 2 states

View merged incident ↗

Nebraska State AGAug 8 · first · this page

Texas State AG+4d

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/55f1df3d-57b7-4bba-8eca-d2224f5fdfac.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 8, 2025
Raw hash: b7ae5fd6bb3834892cc8856cb433c3c2f216e1bff9083e68c1f53a5a19475ed7

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityQuest Resource Holding Corporation

Victim entityQuest Resource Holding Corporation

Incidentdiscovered Jun 23, 2025

Stated responseCommenced an investigation with assistance from a third-party cybersecurity firm

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov