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Regulator-posted notice

Breach notice filed by County of Los Angeles Departments of Health and Mental Health (December 2016)

Organization named: County of Los Angeles Departments of Health and Mental Health Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Hacking/IT Incident

What the sources say

HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) Primary notice

Posted on the HHS Office for Civil Rights breach portal with a submission date of Dec. 16, 2016.

Organization as reported
County of Los Angeles Departments of Health and Mental Health, CA
Entity type as reported
Healthcare Provider
Category as reported
Hacking/IT Incident
Location of information as reported
Email
Submission date
Dec. 16, 2016
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 14327, row:5466)
Archived copy
Held in the private archive (provenance)

The County of Los Angeles, Department of Health and Mental Health (LAC), the covered entity (CE), reported that employee email accounts were breached in a phishing attack that affected the electronic protected health information (ePHI) of 749,017 individuals. Local law enforcement was notified. LAC also notified all affected individuals and the media. The CE hired a third party to conduct a comprehensive HIPAA security audit. In response to the breach, LAC employed additional remediation and mitigation efforts that include cyber features that help identify and block malicious emails, use of an authentication process that will better secure external access to internal emails, and restrictions on the use of personal email accounts. The CE provided all affected individuals with credit monitoring services and identity restoration consultation services.

The source's own words, from the revision above.

Figures, per source

  • 749,017 individuals affected (total reported), according to the HHS Office for Civil Rights breach portal, source date Dec. 16, 2016, revision observed 2026-10-18.

Each figure is one source's figure with the basis that source gave. Figures from different sources are shown side by side and are not added, averaged or chosen between.

Timeline

Source dates are the dates the sources give. Observation dates are when BreachRecords recorded each revision.

  • Submission date (HHS Office for Civil Rights breach portal)
  • Observed by BreachRecords (revision 14327)
  • Approved by a reviewer

Organizations linked by a reviewer

Archived evidence

  • 3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
    text/csv, 5,530,996 bytes, retrieved from HHS Office for Civil Rights breach portal, 2026-10-18 16:15 UTC. Archived privately · Provenance · Source page

Records reflect source filings as of the dates shown. BreachRecords is not a regulator.

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