MalwareHealthcareHealthcareRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedIdentity (basic)Government IDHealth (basic)Financial accountMediumContained

Cookeville Regional Medical Center

bd_cca3ba3c3341f182 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Jul 14, 2025

Filed

Apr 14, 2026

To disclose

39 weeks

Affected

24state residents only

Linked

6 filings

Confidence

66%

Full breach record for Cookeville Regional Medical Center →3 incidents on file

Cookeville Regional Medical Center reported a ransomware incident to the New Hampshire Attorney General on April 14, 2026. Unauthorized access occurred between July 11 and July 14, 2025. The breach affected 24 New Hampshire residents, exposing names, SSNs, DOB, medical records, and insurance info. CRMC engaged forensic investigators, notified law enforcement, and offered 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Leak gap clock✗ Leak >180d39 weeks discovery → filing

⚠ unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Incident timeline

undetected · 3 days

discovery → filing · 39 weeks / 274 days

Jul 11, 2025

Begins

Jul 14, 2025

Discovered

Apr 14, 2026

Filed

vs. sector median

+27 wks slower

This filing is one of 6 about the same incident.View merged incident

A leak claim by rhysida about this victim predates this filing by 275 days.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siterhysidabd_de82a746a3abaa1b2025-08-02 · +255dVerified by operator
Leak Siterhysidabd_0f974ae893d487682025-07-13 · +275dVerified by operator

Regulatory filings (3) · sorted by filing gap

Maine State AGbd_276e5eca9296aab32026-04-14Verified
Massachusetts State AGbd_483d2de112ba28a82026-04-14Verified by operator
Nebraska State AGbd_5d9fc57dfb8b5a632026-04-14Verified by operator

Name: Cookeville Regional Medical Center
norm: cookeville regional medical center

Name: Cookeville Regional Medical Center
norm: cookeville regional medical center
Industry: Healthcarellm

Discovered: Jul 14, 2025
Breach occurred: Jul 11, 2025 – Jul 14, 2025
Undetected for: 3 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 14, 2026
Affected individuals: 24state-resident count only
Data types: Identity (basic)Government IDHealth (basic)Financial account
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1119 Automated Collection
Threat actor: ExternalFinancial

During the incident: Began an internal investigation
Worked to secure its systems
Notified law enforcement
Engaged a computer forensics firm, through counsel, to further investigate and confirm the security of its systems
Changes made: Enhancing its technical security measures
Securing our systems and strengthening our technical safeguards
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 39 weeks(274 days from discovery to filing)
Compliance flags: Leak >180d
Discovery-date grounding: unattributedNo provenance was recorded for this discovery date and it matches no other date on the record. It may be correct, but it is not independently grounded.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 4 filings · 4 states

View merged incident ↗

Maine State AGApr 14 · first

Massachusetts State AGApr 14 · first

Nebraska State AGApr 14 · first

New Hampshire State AGApr 14 · first · 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/cookeville-regional-medical-center-20260414.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 14, 2026
Raw hash: 09035dc65b1c18b1dc04c9fd66fff860a98561e30eaf376689a99dbdfabd48a9

Linked disclosures

Ransomware claims (2)

Regulatory filings (3) · sorted by filing gap

Reporting entityCookeville Regional Medical Center

Victim entityCookeville Regional Medical Center

Incidentdiscovered Jul 14, 2025

Stated responseBegan an internal investigation

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov