Social EngineeringHealthcareHealthcarePhishingTargetedIdentity (basic)Health (basic)LowContained

Monongalia Health System, Inc.

bd_419cea6f6d506200 · schema v1 · pii pii-v1

Severity

Low

Discovered

Mar 3, 2025

Filed

May 6, 2025

To disclose

9 weeks

Affected

1state residents only

Linked

2 filings

Confidence

66%

Full breach record for Monongalia Health System, Inc. →4 incidents on file

Monongalia Health System, Inc. notified Montana residents of a phishing attack targeting employee email accounts. The incident, discovered March 3, 2025, may have exposed names and physician/medical facility information. The organization engaged forensic experts, enhanced security measures, and provided 12 months of credit monitoring.

J jump to incidentP pin to compareR raw source

Incident timeline

discovery → filing · 9 weeks / 64 days

Mar 3, 2025

Discovered

May 6, 2025

Filed

vs. sector median

3 wks faster

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

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

HHS OCRbd_3e9be674f124fc112025-05-03 · +3dCandidate

Name: Monongalia Health System, Inc.
norm: monongalia health system

Name: Monongalia Health System, Inc.
norm: monongalia health system
Industry: Healthcarellm

Discovered: Mar 3, 2025
Materiality determined: —
Notification sent: May 6, 2025
Affected individuals: 1state-resident count only
Data types: Identity (basic)Health (basic)
Attack vector: Phishing
MITRE ATT&CK: T1566.002 Spearphishing Link
Threat actor: External
Initial access: phishing_link

During the incident: Conducted a thorough investigation with the assistance of computer forensic experts
Implementing increased security measures
Employee training to recognize external attacks
Providing access to Single Bureau Credit Monitoring/Single Bureau Credit Report/Single Bureau Credit Score services at no charge
Providing proactive fraud assistance
Changes made: Implementing increased security measures to meet the continually evolving threat landscape
Employee training to recognize external attacks
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 9 weeks(64 days from discovery to filing)
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 ↗

HHS OCRMay 3 · first

Montana State AG+3d · 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://dojmt.gov/wp-content/uploads/2025/12/Consumer-notification-letter-5.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: May 6, 2025
Raw hash: ee4f44d7dafac010d290c8e79f6933efa15bb5438783414a7ed9eaaee196cbf3

Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityMonongalia Health System, Inc.

Victim entityMonongalia Health System, Inc.

Incidentdiscovered Mar 3, 2025

Stated responseConducted a thorough investigation with the assistance of computer forensic experts

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov