HHS OCR report ยท 2025
Blue Shield of California data breach
OCR report facts
- Covered entity
- Blue Shield of California
- Entity type
- Health Plan
- State
- California
- Individuals affected
- 93,921
- Submission date
- Sep 29, 2025
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Paper/Films
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Blue Shield of California, reported that an employee mailed the protected health information (PHI) of 93,921 individuals to the wrong addresses. The PHI involved demographic information. The CE notified HHS, affected individuals, and the media. In response to the breach, the CE provided complimentary credit monitoring services to the affected individuals and implemented additional administrative, technical, and security safeguards to better protect its PHI.
Text as published on the HHS OCR breach portal.
Other reports by Blue Shield of California
| Covered entity | State | Entity type | Individuals | Submitted | Type of breach | Status |
|---|---|---|---|---|---|---|
| Blue Shield of California | CA | Business Associate | 607 | Sep 29, 2025 | Unauthorized Access/Disclosure | Archive (closed) |
| Blue Shield of California | CA | Health Plan | 783 | Jul 21, 2025 | Unauthorized Access/Disclosure | Archive (closed) |
| Blue Shield of California | CA | Business Associate | 673 | Jun 23, 2025 | Unauthorized Access/Disclosure | Under investigation |
| Blue Shield of California | CA | Business Associate | 1,543 | Jun 6, 2025 | Unauthorized Access/Disclosure | Under investigation |
| Blue Shield of California | CA | Business Associate | 4,700,000 | Apr 9, 2025 | Unauthorized Access/Disclosure | Archive (closed) |
| Blue Shield of California | CA | Health Plan | 624 | Feb 28, 2025 | Unauthorized Access/Disclosure | Archive (closed) |
| Blue Shield of California | CA | Health Plan | 1,506 | Jul 12, 2022 | Hacking/IT Incident | Archive (closed) |
| Blue Shield of California | CA | Health Plan | 1,519 | Nov 19, 2021 | Hacking/IT Incident | Archive (closed) |
| Blue Shield of California | CA | Health Plan | 20,764 | Jan 14, 2016 | Unauthorized Access/Disclosure | Archive (closed) |
Frequently asked questions
How many people were affected by the Blue Shield of California data breach?
The report to HHS OCR lists 93,921 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Sep 29, 2025.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, with the breached information located in: Paper/Films.
Is the investigation still open?
No. The report is in the OCR portal archive, which holds reports where OCR has closed its review.
Is a breach notice letter from Blue Shield of California legitimate?
This site cannot verify letters. Check the sender against the organisation's official website and the HHS OCR breach portal, and avoid calling numbers or clicking links only listed in an unexpected message. See our guide on what to do after a data breach notice.
Source: HHS OCR Breach Portal, OCR export October 2026. Network USA is not affiliated with HHS or Blue Shield of California.