HackingProfessional ServicesProfessional ServicesStolen CredentialsCustomer Data InvolvedIdentity (basic)Government IDMediumContained

Hamilton Construction Company

bd_3891a4fb15ceb59d · schema v1 · pii pii-v2

Severity

Medium

Discovered

Jun 19, 2025

Filed

Nov 12, 2025

To disclose

—

Affected

3state residents only

Linked

4 filings

Confidence

66%

Full breach record for Hamilton Construction Company →

Hamilton Construction Company experienced unauthorized network access on June 19, 2025. The incident affected 3 Nebraska residents, exposing names, Social Security numbers, and driver's license information. Hamilton notified law enforcement, credit bureaus, and provided 12 months of credit monitoring via Epiq. Notification to residents occurred on November 12, 2025.

J jump to incidentP pin to compareR raw source

Incident timeline

Jun 19, 2025

Begins

Jun 19, 2025

Discovered

Nov 12, 2025

Filed

This filing is one of 4 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (3) · sorted by filing gap

Montana State AGbd_4e6c6d46de10a0782025-11-12Candidate
Washington State AGbd_702357320a487dee2025-11-12Verified
Oregon State AGbd_37032daff42f3bab2025-12-15 · +33dVerified

Name: Hamilton Construction Company
norm: hamilton construction

Name: Hamilton Construction Company
norm: hamilton construction
Industry: Professional Servicesllm

Discovered: Jun 19, 2025
Breach occurred: Jun 19, 2025
Undetected for: 0 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 12, 2025
Affected individuals: 3state-resident count only
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Notified relevant regulatory authorities
Initial access: exploit_public_facing

During the incident: Notified federal law enforcement
Notified relevant regulatory authorities
Notified the three major credit reporting agencies
Provided access to credit monitoring and identity restoration services for twelve (12) months, through Epiq
Changes made: Reviewing and enhancing its existing policies and procedures
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 · 4 filings · 4 states

View merged incident ↗

Montana State AGNov 12 · first

Washington State AGNov 12 · first

Nebraska State AGNov 12 · first · this page

Oregon State AG+33d

Pattern: first filing Nov 12 (MT), last Dec 15 (OR) — a 33-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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/90ff5f49-31ef-4898-9554-913685981903.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Nov 12, 2025
Raw hash: 10bcdeae0cbb6879829b03bcd3364ccc2f8ee8979cf3eb7cbad9157f9769f940

Linked disclosures

Regulatory filings (3) · sorted by filing gap

Reporting entityHamilton Construction Company

Victim entityHamilton Construction Company

Incidentdiscovered Jun 19, 2025

Stated responseNotified federal law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov