HackingPIILowContained

King City Lumber

bd_e26c24ec54d75893 · schema v1 · pii pii-v1

Severity

Low

Discovered

Dec 3, 2025

Filed

Mar 31, 2026

To disclose

—

Affected

Not disclosed

Linked

2 records

Confidence

65%

Full breach record for King City Lumber →

King City Lumber Company notified Nebraska residents of a cybersecurity incident occurring between November 27 and December 3, 2025. The company discovered unusual network activity on December 3, 2025, leading to an investigation that revealed unauthorized viewing/copying of personal information. Affected individuals were offered 12 months of free credit monitoring and fraud assistance via Cyberscout/TransUnion. The notification letter was dated March 31, 2026.

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Incident timeline

undetected · 6 days

Nov 27, 2025

Begins

Dec 3, 2025

Discovered

Mar 31, 2026

Filed

This filing is one of 2 records about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitedragonforcebd_55dfe7ceeb5ad91f2025-12-05 · +115dCandidate

Name: King City Lumber
norm: king city lumber
Domain: kingcitylumber.com

Name: King City Lumber
norm: king city lumber
Domain: kingcitylumber.com

Discovered: Dec 3, 2025
Breach occurred: Nov 27, 2025 – Dec 3, 2025
Undetected for: 6 daysoccurrence → discovery
Materiality determined: —
Notification sent: Mar 31, 2026
Affected individuals: Not disclosed
Data types: PII
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Initial access: valid_credentials

During the incident: Began an investigation into the scope and nature of the suspicious activity
Retained legal counsel and third-party forensic specialists to investigate the unusual activity
Began a comprehensive review of the data set to determine what sensitive and/or personal information was impacted
Notifying potentially impacted individuals
Providing you with access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing you with proactive fraud assistance
Changes made: Providing you with access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing you with proactive fraud assistance
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.

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/728341bd-b350-4ec9-8a3c-56c1b650a1fd.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Mar 31, 2026
Raw hash: d48e267770434739a4d37af51279f813865611e06ec3f44bcf7769f219be12a5

Linked disclosures

Ransomware claims (1)

Reporting entityKing City Lumber

Victim entityKing City Lumber

Incidentdiscovered Dec 3, 2025

Stated responseBegan an investigation into the scope and nature of the suspicious activity

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancenebraska.gov