MalwareGovernmentGovernmentRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountHealth (basic)MediumContained

Iowa County Government

bd_570aa911ac6f9741 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Apr 28, 2025

Filed

Aug 12, 2025

To disclose

15 weeks

Affected

2state residents only

Confidence

67%

Iowa County, Wisconsin, notified the New Hampshire Attorney General on August 8, 2025, of a ransomware incident detected on April 28, 2025. The breach affected two New Hampshire residents, exposing names, government IDs (SSN, driver's license), financial account numbers, and limited health information. The county engaged forensic experts, restored systems from backups, and provided credit monitoring to affected individuals.

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Incident timeline

discovery → filing · 15 weeks / 106 days

Apr 28, 2025

Discovered

Aug 12, 2025

Filed

vs. sector median

+4 wks slower

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed2 affectedView incident

Name: Iowa County Government
norm: iowa county
Domain: iowa.county.iowa.sites.gmdsolutions.net

Name: Iowa County Government
norm: iowa county
Domain: iowa.county.iowa.sites.gmdsolutions.net
Industry: Governmentllm

Discovered: Apr 28, 2025
Materiality determined: —
Notification sent: Aug 8, 2025
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)
Data elements: Social Security numberDate of birthMedical information
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified law enforcement

During the incident: Engaged outside counsel
Retained cybersecurity experts to conduct a privileged forensic investigation
Restored files from backups
Assessed which files were impacted
Shared regular updates with the public through the county's website
Resetting passwords
Migrating to online services
Establishing stronger password requirements
Deploying endpoint detection on every endpoint
Engaged a data-review firm to assess the impacted files
Notified law enforcement
Changes made: Migrating to online services
Establishing stronger password requirements
Deploying endpoint detection on every endpoint
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 15 weeks(106 days from discovery to filing)
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://mm.nh.gov/files/uploads/doj/remote-docs/iowa-county-wisconsin-20250812.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 12, 2025
Raw hash: 5f15f8914ce15b28640cbf89349aa1838e7710ed663010f714892a7fd6fb93c8

Reporting entityIowa County Government

Victim entityIowa County Government

Incidentdiscovered Apr 28, 2025

Stated responseEngaged outside counsel

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov