CALIFORNIAHackingHealthcareHealthcareCustomer Data InvolvedPHIHealth (basic)Identity (basic)Government IDFinancial accountCriticalContained

Oak Valley Hospital District

bd_d01573e8b26a0e5b · schema v1 · pii pii-v1

Severity

Critical

Discovered

—

Filed

Sep 15, 2023

To disclose

—

Affected

284,629

Linked

2 filings

Confidence

69%

Full breach record for Oak Valley Hospital District →

Oak Valley Hospital District reported to HHS on 2023-09-15 a Hacking/IT Incident affecting 284,629 individuals. Breached information located on Network Server. The cyber-attack compromised PHI including names, addresses, DOB, SSNs, health insurance, diagnoses, lab results, medications, and claims. The entity notified HHS, individuals, and media, and posted substitute notice. Remediation included policy revision, workforce retraining, and technical 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 15, 2023

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 2 about the same incident.View merged incident

Linked disclosures

Why this link?

Regulatory filings (1) · sorted by filing gap

California State AGbd_a98113f6479d00702023-09-15Verified

Name: Oak Valley Hospital District
norm: oak valley hospital district
Industry: Health Care Services

Name: Oak Valley Hospital District
norm: oak valley hospital district
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 284,629nationwide
Data types: PHIHealth (basic)Identity (basic)Government IDFinancial account
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1190 Exploit Public-Facing Application
Threat actor: External
Regulator citations: Notified HHSUnderwent OCR’s investigation

During the incident: Notified HHS
Notified affected individuals
Notified the media
Posted substitute notice on its website
Changes made: Revised its policies and procedures
Retrained its workforce members
Implemented additional technical 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 · 2 filings

View merged incident ↗

California State AGSep 15 · first

HHS OCRSep 15 · 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 15, 2023
Raw hash: 8d33a08b99edb6f7ed58bf76b3d0380457081d2132a58a05a57d9dedabf2b86c

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Linked disclosures

Regulatory filings (1) · sorted by filing gap

Reporting entityOak Valley Hospital District

Victim entityOak Valley Hospital District

IncidentUnauthorized Access

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing