CALIFORNIASocial EngineeringHealthcareGovernmentHealthcarePhishingStolen CredentialsCustomer Data InvolvedEmployee Data InvolvedIdentity (basic)Government IDFinancial accountHealth (basic)CriticalResolved

County of Los Angeles Department of Public Health

bd_f2c63a71a483e319 · schema v1 · pii pii-v1

Severity

Critical

Discovered

—

Filed

Apr 25, 2024

To disclose

—

Affected

252,856

Confidence

98%

Full breach record for County of Los Angeles Department of Public Health →4 incidents on file

County of Los Angeles Departments of Health Services and Public Health reported to HHS on 2024-04-25 a Hacking/IT Incident (email phishing scheme) affecting 252,856 individuals. Multiple employees were targeted via phishing, exposing PHI including names, addresses, dates of birth, driver's license and Social Security numbers, financial information, diagnoses, conditions, lab results, medications, and other treatment information. Breached information located on Email. The CE notified affected individuals, media, and HHS, and offered credit monitoring. Staff were retrained on email security and additional technical safeguards were implemented.

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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 25, 2024

Filed

—

No filing yet · watching

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

Tracked as a single-filing incident — the only disclosure on record for this event so far.Confirmed252,856 affectedView incident

Name: County of Los Angeles Department of Public Health
norm: county of los angeles department of public health
Industry: Health Care Services

Name: County of Los Angeles Department of Public Health
norm: county of los angeles department of public health
Industry: Health Care Services
Industry: Healthcaresource defaultGovernmentllm

Discovered: Not extracted — the OCR public portal omits it
Materiality determined: —
Notification sent: —
Affected individuals: 252,856nationwide
Data types: Identity (basic)Government IDFinancial accountHealth (basic)
HHS breach type: Hacking / IT incident
Where the data lived: Email
Covered-entity type: Healthcare provider
Attack vector: Unauthorized Access
MITRE ATT&CK: T1566 PhishingT1078 Valid Accounts
Threat actor: External
Regulator citations: Notified HHS
Initial access: phishing_link

During the incident: Notified affected individuals
Notified media
Provided substitute notice
Provided complimentary credit monitoring services
Implemented additional technical safeguards
Retrained staff on email security
Changes made: Implemented additional technical safeguards
Staff retrained on email security
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.

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 25, 2024
Raw hash: 853962ca2a67c2589e6f6d6dbdfa6d7d801bbf5fe2563972b40b5c3c1b4e823e

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Reporting entityCounty of Los Angeles Department of Public Health

Victim entityCounty of Los Angeles Department of Public Health

IncidentUnauthorized Access

Stated responseNotified affected individuals

ComplianceHHS notified

Extraction provenanceno artifact recorded

Source provenanceocrportal.hhs.gov

Source filing