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Blue Shield of California

Disclosed Jul 12, 20224 years ago1,506 affectedConfirmed

Official notice

The covered entity (CE), Blue Shield California, reported that a subcontractor of its business associate (BA) was the victim of a ransomware attack affecting the protected health information (PHI) of approximately 1,506 individuals. The PHI involved included names, subscriber identification numbers, diagnoses, medications, addresses, dates of birth, and treatment information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach, the CE provided complimentary credit monitoring and identity theft protection services and implemented additional technical safeguards.

What is known

People affected1,506 (as reported to HHS)
DisclosedJul 12, 2022
HappenedJun 17, 2022
AttackHacking
Data exposedNames, Health
SectorInsurance · US
StatusConfirmed

Sources

Source
California Attorney General breach notice: Blue Shield of Californiaoag.ca.gov · Official notice
HHS OCR breach report (archive, resolved): Blue Shield of California (Health Plan, CA)ocrportal.hhs.gov · Official notice

Notices filed

WhereFiledPeople
California AGresidents of CAJul 12, 2022
HHS archivetotalJul 12, 20221,506
California AGresidents of CADec 22, 2022

Other breaches at Blue Shield of California

BreachAffected
Google Analytics misconfiguration shared 4.7M members' health dataFeb 28, 20251 year agoExposed data4.7M
Disclosed Oct 27, 2021Oct 27, 20214 years agoHacking1,519
Disclosed Jan 14, 2016Jan 14, 201610 years agoInsider21K
Disclosed Feb 18, 2014Feb 18, 201412 years agoUnknown
History of this record
  • 2026-09-25 · sector: other to insurance · backfill source
  • 2026-09-25 · attack: unknown to hacking · 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 1506 · backfill source
  • 2026-09-25 · summary: empty to The covered entity (CE), Blue Shield California, reported that a subcontractor of its business associate (BA) was the victim of a ransomware attack affecting the protected health information (PHI) of approximately 1,506 individuals. The PHI · backfill source
  • 2026-09-25 · disclosed: 2022-12-22 to 2022-07-12 · 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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