Every public data breach

53 disclosed this week · 26,385 on record

California Physicians' Service

Disclosed Jun 5, 2015843 affectedConfirmed

Official notice

On May 18 2015, the covered entity (CE), Blue Shield of California, discovered that several authorized users who logged into their accounts were able to access the protected health information (PHI) of individuals who were not affiliated with their line of business due to a faulty update to the restricted web portal. The PHI of 843 individuals was affected and included names, addresses, birthdates, social security numbers, and other identifiers. The CE provided breach notification to HHS, affected individuals, and the media. In response to the breach, the CE disabled the portal, deployed a patch code to correct the problem, and improved the code testing process. The CE also sanctioned the developer who failed to follow the code merge process. OCR reviewed the CE’s HIPAA Notice of Privacy Practices Policy, as relevant to this breach investigation, and obtained assurances that the CE implemented the corrective actions listed above.

What is known

People affected843 (as reported to HHS)
DisclosedJun 5, 2015
HappenedMay 9, 2015
AttackInsider
Data exposedNamesHealth
SectorHealthcare · US
StatusConfirmed

Sources

Notices filed

Other breaches at California Physicians' Service

History of this record
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 843by backfillSource
summary2026-09-25
empty to On May 18 2015, the covered entity (CE), Blue Shield of California, discovered that several authorized users who logged into their accounts were able to access the protected health information (PHI) of individuals who were not affiliated wiby 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.

Everything about California Physicians' Service