MISSOURIMalwareHealthcareGovernmentHealthcareRansomwareCustomer Data InvolvedData EncryptedRansom DemandedHealth (basic)Identity (basic)Government IDFinancial accountCriticalContained

Jefferson County Health Center

bd_091e4e4098128345 · schema v1 · pii pii-v1

Severity

Critical

Discovered

—

Filed

Jan 13, 2023

To disclose

—

Affected

115,940

Linked

6 filings

Confidence

98%

Full breach record for Jefferson County Health Center →

Jefferson County Health Center d/b/a Jefferson County Health Department (MO) reported to HHS on 2023-01-13 a ransomware incident affecting 115,940 individuals. PHI on network servers included names, SSNs, dates of birth, addresses, driver's license numbers, diagnoses, lab results, medications, claims, and financial information. The CE notified HHS, individuals, and media; published substitute notice; offered free credit monitoring; and implemented additional administrative/technical safeguards with staff retraining.

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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

Jan 13, 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 6 about the same incident.View merged incident

Linked disclosures

Why this link?

Ransomware claims (1)

Leak Sitekarakurtbd_aa7c35c6750282c62023-07-03 · +171dVerified by operator

Regulatory filings (4) · sorted by filing gap

Illinois State AGbd_d1ff68913b9175902023-01-01 · +12dVerified
HHS OCRbd_2393b488fc7d9bca2023-07-28 · +196dCandidate
Vermont State AGbd_70a875ba37d0bab92023-08-02 · +201dVerified by operator
Massachusetts State AGbd_940c4ed69acbf5312023-08-02 · +201dVerified by operator

Name: Jefferson County Health Center
norm: jefferson county health center
Industry: Health Care Services

Name: Jefferson County Health Center
norm: jefferson county health center
Industry: Health Care Services
Also named: Jefferson County Health Centerdba oflegal entity
Jefferson County Health Departmentdba oftrade name
Industry: Healthcaresource defaultGovernmentllm

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 115,940nationwide
Data types: Health (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: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Regulator citations: HHS OCR notified

During the incident: Notified HHS, affected individuals, and the media
Published substitute notice
Offered free credit monitoring to affected individuals
Implemented additional administrative and technical safeguards
Retrained staff on PHI protection and security requirements
Changes made: Additional administrative safeguards implemented
Additional technical safeguards implemented
Staff retraining on PHI protection requirements
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 · 5 filings · 5 states

View merged incident ↗

Illinois State AGJan 1 · first

HHS OCR+12d · this page

HHS OCR+208d

Vermont State AG+213d

Massachusetts State AG+213d

Pattern: first filing Jan 1 (IL), last Aug 2 (MA) — a 213-day rolling notification. Rolling spreads often mean counsel is filing as thresholds trip per state. Why this link?

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: Jan 13, 2023
Raw hash: 6fa617cf298e9111757c385380e4f58c89d6c4a297c812a8906ea3d61a439b08

AI-assisted summary above. The structured extract on this page was generated from the document below. Inspect the source to verify or correct any field.

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Linked disclosures

Ransomware claims (1)

Regulatory filings (4) · sorted by filing gap

Reporting entityJefferson County Health Center

Victim entityJefferson County Health Center

IncidentUnauthorized Access

Stated responseNotified HHS, affected individuals, and the media

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing