MalwareHealthcareHealthcareRansomwareData ExfiltratedData EncryptedCustomer Data InvolvedEmployee Data InvolvedDelayed DiscoveryGovernment IDIdentity (basic)Health (basic)MediumContained

Sandhills Medical Foundation

bd_dd63827fbf969c24 · schema v1 · pii pii-v1

Severity

Medium

Discovered

May 8, 2025

Filed

Apr 29, 2026

To disclose

51 weeks

Affected

Not disclosed

Linked

14 filings

Confidence

65%

Full breach record for Sandhills Medical Foundation →2 incidents on file

Sandhills Medical Foundation, Inc. notified the New Hampshire Attorney General of a ransomware attack occurring from May 2 to May 8, 2025. The incident involved unauthorized access to patient and employee servers, resulting in the encryption of data and exfiltration of personal information including SSNs, driver's licenses, and PHI. Sandhils recovered encrypted data, did not pay ransom, and mailed notifications to affected individuals, including 5 New Hampshire residents, on April 28, 2026. Remediation included enhanced network protocols and engagement of new IT partners.

J jump to incidentP pin to compareR raw source

Leak gap clock✗ Leak >180d51 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 · 6 days

discovery → filing · 51 weeks / 356 days

May 2, 2025

Begins

May 8, 2025

Discovered

Apr 29, 2026

Filed

vs. sector median

+40 wks slower

This filing is one of 14 about the same incident.View merged incident

A leak claim by inc_ransom about this victim predates this filing by 362 days.View originating leak claim

Linked disclosures

Why this link?

Regulatory filings (10) · sorted by filing gap

Vermont State AGbd_fb38a941440b89702026-04-29Verified by operator
Indiana State AGbd_14fe8ca7b959b0672026-04-28 · +1dVerified by operator
South Carolina State AGbd_838e2f76c0067c242026-04-28 · +1dVerified by operator
Indiana State AGbd_96138f16bf8d0e582026-04-28 · +1dVerified by operator

Show 6 more filings ↓up to 35d gap

Maine State AGbd_af253afef01a24142026-04-28 · +1dVerified
Massachusetts State AGbd_cb2a787d95605c9e2026-04-28 · +1dVerified by operator
Nebraska State AGbd_9ca75cbc5dd187072026-06-02 · +34dVerified by operator
Texas State AGbd_b626cd7670911b3a2026-06-02 · +34dVerified by operator
New Hampshire State AGbd_cf1144d9d57c47492026-06-02 · +34dVerified by operator
Maine State AGbd_b0d44c29b558587c2026-06-03 · +35dVerified by operator

Showing first 10 of 13 linked disclosures.

Name: Sandhills Medical Foundation
norm: sandhills medical
Domain: sandhillsmedical.org

Name: Sandhills Medical Foundation
norm: sandhills medical
Domain: sandhillsmedical.org
Industry: Healthcarellm

Discovered: May 8, 2025
Breach occurred: May 2, 2025 – May 8, 2025
Undetected for: 6 daysoccurrence → discovery
Materiality determined: —
Notification sent: Apr 28, 2026
Affected individuals: Not disclosed
Data types: Government IDIdentity (basic)Health (basic)
Data elements: Social Security numberDate of birth
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1119 Automated CollectionT1078 Valid Accounts
Threat actor: ExternalFinancial
Regulator citations: Notified New Hampshire Department of Justice
Initial access: valid_credentials

During the incident: Resecured its network
Commenced an investigation with the assistance of cybersecurity experts, law enforcement, and an independent forensic firm
Recovered all critical data that had been encrypted by the threat actor
Did not pay a ransom
Notified the affected employees
Undertook an extensive data mining process to identify which individuals were affected
Enhanced its network protocols
Engaged new information technology partners to further enhance security
Providing affected individuals with access to credit monitoring and proactive fraud assistance services at no charge
Changes made: Enhanced its network protocols
Engaged new information technology partners to further enhance security and protect against similar incidents in the future
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 51 weeks(356 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 · 11 filings · 8 states

View merged incident ↗

Indiana State AGApr 28 · first

South Carolina State AGApr 28 · first

Indiana State AGApr 28 · first

Maine State AGApr 28 · first

Massachusetts State AGApr 28 · first

Vermont State AG+1d

New Hampshire State AG+1d · this page

Nebraska State AG+35d

Texas State AG+35d

New Hampshire State AG+35d

Maine State AG+36d

Pattern: first filing Apr 28 (IN), last Jun 3 (ME) — a 36-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

Cascade drawn from the first 10 linked disclosures of 13 — the full spread may be wider.

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/sandhills-medical-foundation-20260429.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Apr 29, 2026
Raw hash: e1807d6a0ae4a613104ab7ba7c8685530d2880cf915dd52ce5a18f6970ee1d1f

Linked disclosures

Regulatory filings (10) · sorted by filing gap

Reporting entitySandhills Medical Foundation

Victim entitySandhills Medical Foundation

Incidentdiscovered May 8, 2025

Stated responseResecured its network

ComplianceLeak >180d

Extraction provenanceno artifact recorded

Source provenancemm.nh.gov