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County of Los Angeles

Disclosed Apr 29, 201511 years ago880 affectedConfirmed

Official notice

Paper documents were stolen from an employee car, while off-site. The paper documents contained the protected health information (PHI) of approximately 743 individuals. The types of PHI involved in the breach included first and last names, dates of birth, medical record numbers, telephone numbers, gender information, names of treatment clinics, appointment types, date and time of appointment(s), and reasons for the examination and/or diagnosis. Following the breach, the covered entity (CE) notified local law enforcement and re-trained staff. The CE provided breach notification to HHS, affected individuals and the media. OCR obtained assurances that the CE implemented the corrective actions listed above.

What is known

People affected880 (as reported to HHS)
DisclosedApr 29, 2015
HappenedMay 13, 2016
AttackLost or stolen device
Data exposedNames, Health
SectorGovernment · US
StatusConfirmed

Sources

Source
California Attorney General breach notice: County of Los Angelesoag.ca.gov · Official notice
HHS OCR breach report (archive, resolved): County of Los Angeles (Healthcare Provider, CA)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
California AGresidents of CAApr 29, 2015
HHS archivetotalApr 29, 2015880
HHS archivetotalAug 30, 2016743
California AGresidents of CADec 16, 2016

Other breaches at County of Los Angeles

BreachAffected
Disclosed Sep 17, 2010Sep 17, 201016 years agoLost or stolen device33K
History of this record
  • 2026-09-25 · records: 743 to 880 · backfill source
  • 2026-09-25 · attack: unknown to lost-device · backfill source
  • 2026-09-25 · data_types: [] to ["names","health"] · backfill source
  • 2026-09-25 · records_basis: empty to hhs · backfill source
  • 2026-09-25 · records: empty to 743 · backfill source
  • 2026-09-25 · summary: empty to Paper documents were stolen from an employee car, while off-site. The paper documents contained the protected health information (PHI) of approximately 743 individuals. The types of PHI involved in the breach included first and last names, · backfill source
  • 2026-09-25 · disclosed: 2016-12-16 to 2015-04-29 · backfill source
  • 2026-09-25 · added · backfill source

First seen 2026-09-25 (California AG), confirmed by California AG. Record counts are as reported. Not legal advice.

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