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44 disclosed this week · 26,355 on record

CalOptima

Disclosed Aug 22, 20161,000 affectedConfirmed

Official notice

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 sec

What is known

People affected1,000 (as reported to HHS)
DisclosedAug 22, 2016
HappenedAug 17, 2016
AttackInsider
Data exposedNamesHealth
SectorInsurance · US
StatusConfirmed

Sources

Notices filed

Other breaches at CalOptima

History of this record
sector2026-09-25
other to insuranceby backfillSource
attack2026-09-25
unknown to insiderby backfillSource
data_types2026-09-25
[] to ["names","health"]by backfillSource
records_basis2026-09-25
empty to hhsby backfillSource
records2026-09-25
empty to 1000by backfillSource
disclosed2026-09-25
2016-10-14 to 2016-08-22by backfillSource
summary2026-09-25
empty to 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 by backfillSource
Added2026-09-25
First recordedby backfillSource

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

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