WYOMINGMalwareHealthcareHealthcareRansomwareBusiness Associate (HIPAA)Customer Data InvolvedData EncryptedRansom DemandedPHIIdentity (basic)Government IDHealth (basic)HighContained

Elkhorn Valley Rehabilitation Hospital

bd_9a5c1e0127cdde97 · schema v1 · pii pii-v1

Severity

High

Discovered

—

Filed

Mar 29, 2024

To disclose

—

Affected

3,636

Linked

3 filings

Confidence

98%

Full breach record for Elkhorn Valley Rehabilitation Hospital →2 incidents on file

Elkhorn Valley Rehabilitation Hospital (WY) reported to HHS on 2024-03-29 a ransomware incident affecting 3,636 individuals. Breached PHI on network server included names, dates of birth, SSNs, driver's license numbers, addresses, claims information, medications, diagnoses, and other treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice. A business associate was present.

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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

Mar 29, 2024

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

Indiana State AGbd_6a1bb539dfee2a9c2024-03-29Verified
Montana State AGbd_7712e66f2200a9a52024-03-29Candidate

Name: Elkhorn Valley Rehabilitation Hospital
norm: elkhorn valley rehabilitation hospital
Industry: Health Care Services

Name: Elkhorn Valley Rehabilitation Hospital
norm: elkhorn valley rehabilitation hospital
Industry: Health Care Services
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 3,636nationwide
Data types: PHIIdentity (basic)Government IDHealth (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Healthcare providerBusiness associate involved
Attack vector: Ransomware
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: Notified HHSNotified affected individualsNotified the mediaPosted substitute notice on its website

During the incident: Notified HHS, affected individuals, the media, and posted substitute notice on its website
Offered free credit monitoring
Changes made: Implemented additional administrative, technical, and security safeguards
Staff were retrained in its requirements to protect and secure PHI
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 ↗

Indiana State AGMar 29 · first

Montana State AGMar 29 · first

HHS OCRMar 29 · 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: Mar 29, 2024
Raw hash: 8e1fb1d59478b8287b201767cd610cadedcc441f93fb73ad681da47e565f8524

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Linked disclosures

Regulatory filings (2) · sorted by filing gap

Reporting entityElkhorn Valley Rehabilitation Hospital

Victim entityElkhorn Valley Rehabilitation Hospital

IncidentRansomware

Stated responseNotified HHS, affected individuals, the media, and posted substitute notice on its website

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing