HackingHealthcareTechnologyHealthcareBusiness Associate (HIPAA)Customer Data InvolvedDelayed DiscoveryPHIHealth (basic)Identity (basic)LowContained

Grant County Public Hospital District #2

bd_c547969d194bb5d1 · schema v1 · pii pii-v1

Severity

Low

Discovered

—

Filed

Aug 7, 2026

To disclose

—

Affected

Not disclosed

Linked

2 filings

Confidence

64%

Full breach record for Grant County Public Hospital District #2 →

Aesto LLC experienced a network security incident impacting its AWS infrastructure. Unauthorized access to sensitive information pertaining to HIPAA Covered Entity Clients occurred between December 2 and December 18, 2025. Aesto discovered the incident on December 18, 2025, and notified affected Covered Entities on June 26, 2026. The incident is contained. No evidence of misuse was found.

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Incident timeline

Dec 2, 2025

Begins

Aug 7, 2026

Filed

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

Indiana State AGbd_a21d344d990055ae2026-08-05 · +2dVerified

Name: Grant County Public Hospital District #2
norm: grant county public hospital district 2

Name: Grant County Public Hospital District #2
norm: grant county public hospital district 2
Also named: Grant County Public Hospital District #2dba oflegal entity
Quincy Valley Medical Centerdba oftrade name
Industry: HealthcarellmTechnologyllm

Discovered: —
Breach occurred: Dec 2, 2025 – Dec 18, 2025
Materiality determined: —
Notification sent: —
Affected individuals: Not disclosed
Data types: PHIHealth (basic)Identity (basic)
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External

During the incident: Commenced a prompt and thorough investigation
Worked very closely with external cybersecurity professionals experienced in handling these types of incidents
Conducted extensive forensic investigation and manual document review
Notified Covered Entities with impacted information of the incident
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 · 2 filings · 2 states

View merged incident ↗

Indiana State AGAug 5 · first

New Hampshire State AG+2d · this page

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/aesto-20260807.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Aug 7, 2026
Raw hash: 96236268893b6214a62059a1b888cbdb698c3e0aa740c7dd1a6dd236fe10bb65

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityGrant County Public Hospital District #2

Victim entityGrant County Public Hospital District #2

IncidentUnauthorized Access

Stated responseCommenced a prompt and thorough investigation

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov