HackingHealthcareHealthcareStolen CredentialsMulti-Stage ChainData ExfiltratedIdentity (basic)Government IDFinancial accountHealth (basic)PHIMediumContained

Sturgis Hospital

bd_ca4218398a0b6976 · schema v1 · pii pii-v1

Severity

Medium

Discovered

Dec 1, 2024

Filed

Sep 18, 2025

To disclose

42 weeks

Affected

6state residents only

Linked

3 filings

Confidence

66%

Full breach record for Sturgis Hospital →2 incidents on file

Sturgis Hospital notified Montana residents of two unauthorized network access events detected in December 2024 and June 2025. An unauthorized third party may have accessed files containing names, SSNs, financial account details, and PHI. The hospital engaged third-party experts, notified law enforcement, and is offering credit monitoring.

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Incident timeline

discovery → filing · 42 weeks / 291 days

Dec 1, 2024

Discovered

Sep 18, 2025

Filed

vs. sector median

+31 wks slower

This filing is one of 3 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (2) · sorted by filing gap

HHS OCRbd_6ad0e37db960ba4c2025-09-18Candidate
Nebraska State AGbd_d0e6f8cdf7e22f942025-09-18Verified

Name: Sturgis Hospital
norm: sturgis hospital
Domain: sturgishospital.com

Name: Sturgis Hospital
norm: sturgis hospital
Domain: sturgishospital.com
Industry: Healthcarellm

Discovered: Dec 1, 2024
Materiality determined: —
Notification sent: —
Affected individuals: 6state-resident count only
Data types: Identity (basic)Government IDFinancial accountHealth (basic)PHI
Data elements: Social Security numberMedical information
Attack vector: Unauthorized Access
MITRE ATT&CK: T1078 Valid AccountsT1119 Automated Collection
Threat actor: External
Regulator citations: Notified law enforcement
Initial access: valid_credentials

During the incident: Collaborated with third-party cybersecurity experts to investigate and remediate
Launched separate investigation with third-party experts
Notified law enforcement
Changes made: Further secured systems to protect data
Source: Quoted from the filing itself, not independently verified.

Time to disclose: 42 weeks(291 days from discovery to filing)
Compliance flags: — (clock not assessable for this source)

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

HHS OCRSep 18 · first

Nebraska State AGSep 18 · first

Montana State AGSep 18 · 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://dojmt.gov/wp-content/uploads/2025/09/Consumer-notification-letter-48.pdf
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
Filed at: Sep 18, 2025
Raw hash: a808fdde57b8607f3a1d1be611325bba8b3eca5edefa49e1cf79c930c9f9a454

Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entitySturgis Hospital

Victim entitySturgis Hospital

Incidentdiscovered Dec 1, 2024

Stated responseCollaborated with third-party cybersecurity experts to investigate and remediate

Complianceclock not assessable

Extraction provenanceno artifact recorded

Source provenancedojmt.gov