HackingHealthcareHealthcareStolen CredentialsTargetedIdentity (basic)Government IDPHIHealth (basic)MediumContained

Memorial Hospital and Manor

bd_5406be6911868410 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Nov 2, 2024

Filed

Feb 8, 2025

To disclose

14 weeks

Affected

14state residents only

Linked

11 records

Confidence

66%

Full breach record for Memorial Hospital and Manor →

Memorial Hospital and Manor notified Montana residents of a data security incident discovered on November 2, 2024. An unknown actor accessed unauthorized personal and health information, including SSNs, DOBs, and medical history. The organization engaged forensic investigators, reported to the FBI, and offered credit monitoring.

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Leak gap clock⏱ Leak >90d14 weeks discovery → filing

Incident timeline

discovery → filing · 14 weeks / 98 days

Nov 2, 2024

Discovered

Feb 8, 2025

Filed

vs. sector median

+5 wks slower

This filing is one of 11 records about the same incident.View merged incident

A leak claim by embargo about this victim was first seen 95 days before this filing.View originating leak claim

Linked disclosures

Why this link?

Ransomware claims (2)

Leak Siteembargobd_35ab4b9ad00738952024-11-02 · +98dVerified by operator
Leak Siteembargobd_d6ff5060fcc59c172024-11-02 · +98dVerified by operator

Regulatory filings (8) · sorted by filing gap

Maryland State AGbd_2018af7fe358a2b72025-02-08Verified by operator
HHS OCRbd_58a3f32af1a0cfa12025-02-08Verified by operator
Maine State AGbd_c9845879829315b02025-02-08Verified by operator
Massachusetts State AGbd_edb024eae4fca61e2025-02-08Verified

Show 4 more filings ↓up to 2d gap

Vermont State AGbd_0f2836569bf8ac222025-02-07 · +1dVerified by operator
Indiana State AGbd_6027e66c9f3c59652025-02-07 · +1dVerified by operator
Nebraska State AGbd_96fc42b5437eec072025-02-07 · +1dVerified by operator
New Hampshire State AGbd_251404032b07834a2025-02-10 · +2dVerified by operator

Name: Memorial Hospital and Manor
norm: memorial hospital and manor
Domain: mh-m.org

Name: Memorial Hospital and Manor
norm: memorial hospital and manor
Domain: mh-m.org
Industry: Healthcarellm

Discovered: Nov 2, 2024
Materiality determined: —
Notification sent: Feb 7, 2025
Affected individuals: 14state-resident count only
Data types: Identity (basic)Government IDPHIHealth (basic)
Data elements: Social Security numberDate of birthMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid Accounts
Threat actor: External
Regulator citations: reported the incident to the FBI
Initial access: valid_credentials

During the incident: Took steps to secure our network
Engaged a leading, independent cybersecurity firm to investigate
Reported the incident to the FBI
Implemented several measures to enhance our security posture
Offering you access to complimentary credit monitoring and identity theft protection services through IDX
Changes made: Implemented several measures to enhance our security posture and reduce the risk of similar future incidents
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 14 weeks(98 days from discovery to filing)
Compliance flags: Leak >90d
Discovery-date grounding: letter-groundedThe discovery date is the detection date narrated in the notification letter — the defensible tier.

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 9 filings · 9 states

View merged incident ↗

Vermont State AGFeb 7 · first

Indiana State AGFeb 7 · first

Nebraska State AGFeb 7 · first

Maryland State AG+1d

HHS OCR+1d

Maine State AG+1d

Massachusetts State AG+1d

Montana State AG+1d · this page

New Hampshire State AG+3d

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://dojmt.gov/wp-content/uploads/2025/03/Consumer-notification-letter-190.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Feb 8, 2025
Raw hash: a99f0881141668df4f072dd6646c8cc88da8f367089874c97d2a718adc23f858

Linked disclosures

Ransomware claims (2)

Regulatory filings (8) · sorted by filing gap

Reporting entityMemorial Hospital and Manor

Victim entityMemorial Hospital and Manor

Incidentdiscovered Nov 2, 2024

Stated responseTook steps to secure our network

ComplianceLeak >90d

Extraction provenanceno artifact recorded

Source provenancedojmt.gov