HackingHealthcareHealthcareVulnerability ExploitStolen CredentialsData ExfiltratedCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDHealth (basic)PHIMediumContained

Nacogdoches Memorial Hospital

bd_10c07a29e1f5befd · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jan 31, 2026

Filed

Mar 31, 2026

To disclose

8 weeks

Affected

2state residents only

Linked

5 filings

Confidence

68%

Full breach record for Nacogdoches Memorial Hospital →

Nacogdoches Memorial Hospital reported a cybersecurity incident to the New Hampshire Attorney General on March 31, 2026. The hospital became aware of the unauthorized access to its network on January 31, 2026. The breach potentially exposed patient information, including names, addresses, SSNs, dates of birth, and medical records. Two New Hampshire residents were notified. The hospital engaged law enforcement, reset credentials, and enhanced network security.

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Incident timeline

discovery → filing · 8 weeks / 59 days

Jan 31, 2026

Discovered

Mar 31, 2026

Filed

vs. sector median

4 wks faster

This filing is one of 5 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (4) · sorted by filing gap

Nebraska State AGbd_23cf487587874c192026-03-31Verified
Maine State AGbd_532a9f2d9cbd8c1a2026-03-31Verified
HHS OCRbd_e894e0dd4e632bf32026-03-30 · +1dVerified
Indiana State AGbd_ba4426b59fd205cd2026-03-12 · +19dCandidate

Name: Nacogdoches Memorial Hospital
norm: nacogdoches memorial hospital
Domain: nacmem.org

Name: Nacogdoches Memorial Hospital
norm: nacogdoches memorial hospital
Domain: nacmem.org
Industry: Healthcarellm

Discovered: Jan 31, 2026
Materiality determined: —
Notification sent: —
Affected individuals: 2state-resident count only
Data types: Identity (basic)Government IDHealth (basic)PHI
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing ApplicationT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified New Hampshire Attorney General
Initial access: exploit_public_facing

During the incident: Notified law enforcement
Initiated its incident response plan
Commenced an investigation
Resecuring its computer network environment from the unauthorized party
Reinforced and enhanced its network security
Firewall replacement
Compromised credentials reset
Enhanced monitoring deployed
Endpoint detection and response tools updated and validate
Full endpoint malware scanning completed
Third-party security review initiated
Changes made: Implemented remediation measures to prevent recurrence
Strengthened its network security
Enhancing our cyber preparedness through additional awareness training
Updating our procedures
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 8 weeks(59 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 5 filings · 5 states

View merged incident ↗

Indiana State AGMar 12 · first

HHS OCR+18d

Nebraska State AG+19d

Maine State AG+19d

New Hampshire State AG+19d · this page

Pattern: first filing Mar 12 (IN), last Mar 31 (NH) — a 19-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://mm.nh.gov/files/uploads/doj/remote-docs/nacogdoches-memorial-hospital-20260331.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: a7fe59eece6648d2c39c79fdb50b6a6ce48e81b7e0ec2d83d436fde099899848

Linked disclosures

Regulatory filings (4) · sorted by filing gap

Reporting entityNacogdoches Memorial Hospital

Victim entityNacogdoches Memorial Hospital

Incidentdiscovered Jan 31, 2026

Stated responseNotified law enforcement

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov