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Regulator-posted notice

Breach notice filed by CalOptima (August 2016)

Organization named: CalOptima Provisional: identity as filed, not yet matched to the directory
Type as the source lists it: Unauthorized Access/Disclosure

What the sources say

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

Posted on the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals) with a submission date of Aug. 22, 2016.

Organization as reported
CalOptima, CA
Entity type as reported
Health Plan
Category as reported
Unauthorized Access/Disclosure
Location of information as reported
Other Portable Electronic Device
Submission date
Aug. 22, 2016
Observed by BreachRecords
2026-10-18 16:15 UTC (revision 14445, row:5584)
Archived copy
Held in the private archive (provenance)

An employee of CalOptima, the covered entity (CE), impermissibly copied data files containing the protected health information (PHI) of patients to an unauthorized electronic mobile storage device (a universal serial bus (USB)) on her last days of employment with the CE. The CE discovered the breach through its data loss prevention system. The breach affected approximately 15,800 individuals. The types of PHI involved included full names, addresses, dates of birth, claims information, diagnosis/conditions, medications, treatment information, Medicaid beneficiary numbers, and social security numbers. The CE provided breach notification to affected individuals, the media, and HHS, and also provided substitute notice. Following the breach, the CE immediately reported the incident to local law enforcement. As a result of the incident, the CE updated its policies and procedures, disabled USB device write privileges for all employees, and made sure its information security team will be informed when employees separated from the CE. The CE also implemented a new procedure requiring employees to justify and receive approval from management before submitting a request to its information security team to receive permission to write to USB devices. OCR obtained assurances from the CE that it implemented the corrective actions listed above.

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

Figures, per source

  • 1,000 individuals affected (total reported), as reported by the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), source date Aug. 22, 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 at the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals)
  • Observed by BreachRecords (revision 14445)
  • Approved by a reviewer

Organizations linked by a reviewer

  • CalOptima Named as the covered entity Provisional: identity as filed, not yet matched to the directory Linked 2026-10-19, method provisional.

Archived evidence

  • 3dbc27dd5742e041cc1e7fe18cc669e2901fbd3b86b7007ed27948ff4d406e1f
    text/csv, 5,530,996 bytes, from the HHS OCR breach portal (HIPAA breaches affecting 500 or more individuals), retrieved 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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