MICHIGANMalwareHealthcareHealthcareRansomwareData EncryptedCustomer Data InvolvedPHIHealth (basic)Identity (basic)FinancialMedium

Sturgis Hospital

bd_6ad0e37db960ba4c · schema v1 · pii pii-v1

Severity

Medium

Discovered

—

Filed

Sep 18, 2025

To disclose

—

Affected

77,771

Linked

3 filings

Confidence

96%

Full breach record for Sturgis Hospital →2 incidents on file

Sturgis Hospital (MI) reported a ransomware attack to HHS OCR on 2025-09-18 affecting PHI on a network server for 77,771 individuals. PHI involved included clinical, demographic, and financial information. Response included notification to HHS, affected individuals, and media; substitute notice; complimentary credit monitoring; and additional administrative, technical, and security safeguards.

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HIPAA clock✓ HHS notified

⚠ no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.

⚠ No discovery dateThe OCR public portal omits the discovery date, so the 60-day notification clock cannot be evaluated from this source — only that the filing was submitted.

Incident timeline — partial

? — ?

Breach window unknown

Sep 18, 2025

Filed

—

Corroborated · see linked filings

Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.

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

Montana State AGbd_ca4218398a0b69762025-09-18Candidate
Nebraska State AGbd_d0e6f8cdf7e22f942025-09-18Verified

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

Name: Sturgis Hospital
norm: sturgis hospital
Domain: sturgishospital.com
Industry: Healthcare Provider
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 77,771nationwide
Data types: PHIHealth (basic)Identity (basic)Financial
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Healthcare provider
Attack vector: Ransomware
Threat actor: ExternalFinancial
Regulator citations: HHS OCR breach report

During the incident: Notified HHS
Notified affected individuals
Notified media
Provided substitute notice
Provided complimentary credit monitoring services
Changes made: Implemented additional administrative, technical, and security safeguards
Source: Quoted from the filing itself, not independently verified.

Compliance flags: HHS notified
Discovery-date grounding: no discovery dateNo discovery date was extracted, so no notification clock can be evaluated.
Clock breakdown: Statute Window Elapsed Threshold Status
HIPAA
Discovered: not extracted
→ Notified: not extracted
— regulatory submission HHS notified

Statute	Window	Elapsed	Threshold	Status
HIPAA	Discovered: not extracted → Notified: not extracted	—	regulatory submission	HHS notified

Status: No extraction artifact recorded for this disclosure.

Filing propagation · 3 filings · 3 states

View merged incident ↗

Montana State AGSep 18 · first

Nebraska State AGSep 18 · first

HHS OCRSep 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://ocrportal.hhs.gov/ocr/breach/breach_report.jsf
DisclosureLens renders the full SEC/HHS filing inline below from the originating regulator’s public record (§4.5 fair report privilege).
Filed at: Sep 18, 2025
Raw hash: 7dbdc9f5f807cae8f1b11f1edd1eff21658794e8f69ef4e8f628763417efafe8

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Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entitySturgis Hospital

Victim entitySturgis Hospital

IncidentRansomware

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing