CALIFORNIAMalwareHealthcareHealthcareRansomwareBusiness Associate (HIPAA)Customer Data InvolvedData ExfiltratedData EncryptedRansom DemandedPHIHealth (basic)Identity (basic)Government IDFinancial accountCriticalContained

Health Center Partners of Southern California

bd_e46d5b364a333648 · schema v1 · pii pii-v1

Severity

Critical

Discovered

—

Filed

Apr 9, 2021

To disclose

—

Affected

337,245

Linked

6 filings

Confidence

69%

Full breach record for Health Center Partners of Southern California →2 incidents on file

Health Center Partners of Southern California reported to HHS on 2021-04-09 a Hacking/IT Incident affecting 337,245 individuals. Breached information located on Network Server. A vendor experienced a ransomware attack affecting ePHI including names, diagnoses, SSNs, medications, and financial/insurance data. The BA implemented 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

Apr 9, 2021

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

Part of Netgain Networks supply-chain incident (2021) — a supply-chain cascade affecting multiple organizations.View cascade →

Linked disclosures

Why this link?

Regulatory filings (5) · sorted by filing gap

Montana State AGbd_061adccd52816a0a2021-04-08 · +1dVerified
Indiana State AGbd_50ad05ee6a4a06f62021-04-08 · +1dVerified
California State AGbd_435d5512e8a6d8a02021-04-21 · +12dVerified
New Hampshire State AGbd_342dbf40b3d168a62021-04-22 · +13dVerified

Show 1 more filing ↓up to 13d gap

Massachusetts State AGbd_59d32f5e66b8b8df2021-04-22 · +13dVerified

Name: Health Center Partners of Southern California
norm: health center partners of southern california
Industry: Health Care Services

Name: Health Center Partners of Southern California
norm: health center partners of southern california
Industry: Healthcaresource default

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 337,245nationwide
Data types: PHIHealth (basic)Identity (basic)Government IDFinancial account
HHS breach type: Hacking / IT incident
Where the data lived: Network server
Covered-entity type: Business associate
Attack vector: Unauthorized Access
MITRE ATT&CK: T1486 Data Encrypted for ImpactT1041 Exfiltration Over C2 Channel
Threat actor: ExternalFinancial
Third party: via vendorbusiness associate

During the incident: Notified HHS
Notified affected individuals
Notified the media
Provided substitute notice
Implemented additional administrative, technical, and security safeguards to better protect ePHI
Changes made: Implemented additional administrative, technical, and security safeguards to better protect ePHI
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 · 6 filings · 5 states

View merged incident ↗

Montana State AGApr 8 · first

Indiana State AGApr 8 · first

HHS OCR+1d · this page

California State AG+13d

New Hampshire State AG+14d

Massachusetts State AG+14d

Pattern: first filing Apr 8 (MT), last Apr 22 (MA) — a 14-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: Apr 9, 2021
Raw hash: b6afa1a93f6dafd04dc1f40746a047dc52116568739b4ef8524d61b98be03374

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Linked disclosures

Regulatory filings (5) · sorted by filing gap

Reporting entityHealth Center Partners of Southern California

Victim entityHealth Center Partners of Southern California

IncidentUnauthorized Access

Stated responseNotified HHS

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing