HHS OCR report ยท 2013
ZDI data breach
ZDI, a business associate in California, reported a breach affecting 14,829 individuals to HHS OCR on Apr 29, 2013.
OCR report facts
- Covered entity
- ZDI
- Entity type
- Business Associate
- State
- California
- Individuals affected
- 14,829
- Submission date
- Apr 29, 2013
- Type of breach
- Loss
- Location of breached information
- Paper/Films
- Business associate present
- Yes
- Status
- Archive (closed)
OCR description
This case, along with two companion cases , involved data lost due to damage and/or opening of priority mail during processing and transit through the United States Post Office. In this case, potentially 15,000 individuals may have been affected. The types of protected health information (PHI) involved in the breach included names, social security numbers, group names, and group numbers. The data was not recovered. The covered entity (CE), Delta Dental, provided breach notification to HHS...
Text as published on the HHS OCR breach portal.
Other reports by ZDI
Frequently asked questions
How many people were affected by the ZDI data breach?
The report to HHS OCR lists 14,829 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Apr 29, 2013.
What type of breach was it?
The OCR portal lists the type of breach as Loss, 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 ZDI 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 ZDI.