HackingGovernmentGovernmentData ExfiltratedIdentity (basic)Government IDMediumContained

Lakehaven Water and Sewer District

bd_49b6e621df39094e · schema v1 · pii pii-v2

Severity

Medium

Discovered

Aug 25, 2025

Filed

Dec 2, 2025

To disclose

—

Affected

Not disclosed

Linked

2 filings

Confidence

66%

Full breach record for Lakehaven Water and Sewer District →

Lakehaven Water and Sewer District (Nebraska) experienced unauthorized access to its computer systems between August 22 and August 27, 2025. The District discovered suspicious activity on August 25, 2025, and contained the incident by taking systems offline, changing passwords, and restoring from backups. Files containing personal information (names, government IDs) were obtained by an unauthorized party. No evidence of fraud or identity theft was found.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >90d

Incident timeline

undetected · 3 days

Aug 22, 2025

Begins

Aug 25, 2025

Discovered

Dec 2, 2025

Filed

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

A leak claim by qilin about this victim predates this filing by 97 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteqilinbd_b333f34a0ddf43a52025-08-27 · +97dVerified

Name: Lakehaven Water and Sewer District
norm: lakehaven water and sewer district
Domain: lakehaven.org

Name: Lakehaven Water and Sewer District
norm: lakehaven water and sewer district
Domain: lakehaven.org
Industry: Governmentllm

Discovered: Aug 25, 2025
Breach occurred: Aug 22, 2025 – Aug 27, 2025
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: Identity (basic)Government ID
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Initial access: exploit_public_facing

During the incident: Proactively taking systems offline
Changing passwords
Deploying advanced security and detection software
Restoring systems from backups
Engaging leading cybersecurity professionals to assist with our investigation and response
Changes made: Implemented additional measures to further improve the security of our systems and practices
Source: Quoted from the filing itself, not independently verified.

Compliance flags: Leak >90d
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.

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/291d611b-ecb4-453d-8e6d-e900c92e5841.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 2, 2025
Raw hash: 525454befcaa1a88f98884bebab8b6938e4e9ab80ed5aa1f68a4f5ed9a7ec044

Linked disclosures

Ransomware claims (1)

Reporting entityLakehaven Water and Sewer District

Victim entityLakehaven Water and Sewer District

Incidentdiscovered Aug 25, 2025

Stated responseProactively taking systems offline

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancenebraska.gov