MalwareGovernmentGovernmentRansomwareData ExfiltratedData EncryptedRansom DemandedCustomer Data InvolvedPIIIdentity (basic)LowContained

Box Elder County

bd_153cc7b458d943ec · schema v1 · pii pii-v2

Severity

Low

Discovered

Aug 3, 2025

Filed

Dec 17, 2025

To disclose

—

Affected

Not disclosed

Linked

7 filings

Confidence

65%

Full breach record for Box Elder County →

Box Elder County experienced a ransomware incident with unauthorized network access occurring between May 6, 2025, and August 3, 2025. The County detected the ransomware on August 3, 2025, and engaged third-party forensic consultants and law enforcement. The attackers exfiltrated public records and personal information, which was subsequently posted online. The County refused to pay the ransom. Notification letters were sent to affected individuals starting November 17, 2025, offering credit monitoring services.

J jump to incidentP pin to compareR raw source

Leak gap clock⏱ Leak >90d

Incident timeline

undetected · 89 days

May 6, 2025

Begins

Aug 3, 2025

Discovered

Dec 17, 2025

Filed

This filing is one of 7 about the same incident.View merged incident

A leak claim by interlock about this victim predates this filing by 126 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Siteinterlockbd_7a2d89b97d32cf822025-08-13 · +126dVerified by operator

Regulatory filings (5) · sorted by filing gap

Maine State AGbd_2991d0849073512f2025-12-17Candidate
Montana State AGbd_a1e28b49e506ea412025-12-17Verified by operator
Indiana State AGbd_d1cfbff34cfa17612025-12-17Verified
New Hampshire State AGbd_2a7063a4068a187a2025-12-24 · +7dVerified

Show 1 more filing ↓up to 9d gap

Massachusetts State AGbd_83ffa09a231748e52025-12-26 · +9dVerified by operator

Name: Box Elder County
norm: box elder county
Domain: boxeldercounty.org

Name: Box Elder County
norm: box elder county
Domain: boxeldercounty.org
Industry: Governmentllm

Discovered: Aug 3, 2025
Breach occurred: May 6, 2025 – Aug 3, 2025
Undetected for: 89 daysoccurrence → discovery
Materiality determined: —
Notification sent: Nov 17, 2025
Affected individuals: Not disclosed
Data types: PIIIdentity (basic)
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 ChannelT1119 Automated Collection
Threat actor: ExternalFinancial
Regulator citations: Notified state and federal law enforcementNotified the Utah Attorney General, the Utah Cyber Center, and all appropriate state regulators

During the incident: Launched an investigation with assistance from nationally recognized third-party cybersecurity and data forensics consultants
Alerted state and federal law enforcement
Refused to pay the cyber criminals any ransom
Conducted a thorough review of that data
Notified the Utah Attorney General, the Utah Cyber Center, and all appropriate state regulators
Changes made: Deployed security tools to enhance detection and accelerate response to cyber incidents
Actively monitoring our network using end point detection tools
Conducted enterprise-wide password reset
Strengthened restrictions for external network access
Evaluating steps to further bolster our cyber defenses
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.

Filing propagation · 6 filings · 6 states

View merged incident ↗

Maine State AGDec 17 · first

Montana State AGDec 17 · first

Indiana State AGDec 17 · first

Nebraska State AGDec 17 · first · this page

New Hampshire State AG+7d

Massachusetts State AG+9d

Pattern: first filing Dec 17 (ME), last Dec 26 (MA) — a 9-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/1e39617e-83e0-47ad-93b6-f5ab48058db4.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Dec 17, 2025
Raw hash: 34b5f5bdb2feb09dabe3e104dd0ba08fca2eef31d8781feed4d69010a2af20d8

Linked disclosures

Ransomware claims (1)

Regulatory filings (5) · sorted by filing gap

Reporting entityBox Elder County

Victim entityBox Elder County

Incidentdiscovered Aug 3, 2025

Stated responseLaunched an investigation with assistance from nationally recognized third-party cybersecurity and data forensics consultants

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancenebraska.gov