Blue Shield of California OR Blue Shield of California Promise Health Plan
Disclosed Nov 17, 20232 years ago27,832 affectedConfirmed
Blue Shield of California OR Blue Shield of California Promise Health Plan, the covered entity (CE), reported that its business associate (BA) experienced a cyber-attack that compromised the protected health information (PHI) of 27,832 individuals. The PHI involved included names, Social Security numbers, diagnoses, addresses, birthdates, and claims information. In its mitigation efforts, the CE provided complimentary credit monitoring services and implemented additional administrative, technical, and security safeguards.
What is known
| People affected | 27,832 (as reported to HHS) |
|---|---|
| Disclosed | Nov 17, 2023 |
| Attack | Hacking |
| Data exposed | Names, Health |
| Sector | Healthcare · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| HHS OCR breach report (archive, resolved): Blue Shield of California OR Blue Shield of California Promise Health Plan (Business Associate, CA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Nov 17, 2023 | 27,832 |
History of this record
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.
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