HHS OCR report · 2021
Cadence Aerospace data breach
OCR report facts
- Covered entity
- Cadence Aerospace
- Entity type
- Health Plan
- State
- California
- Individuals affected
- 747
- Submission date
- Apr 8, 2021
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
Cadence Aerospace, the covered entity (CE), reported that one of its subsidiaries was the victim of a ransomware attack that affected the electronic protected health information (ePHI) of approximately 747 individuals. The ePHI involved included names, addresses, dates of birth, Social Security numbers, and financial and health insurance information. Prior to the start of the investigation, OCR determined that Cadence’s subsidiary was not a covered entity and therefore, not subject to the ...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Cadence Aerospace data breach?
The report to HHS OCR lists 747 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Apr 8, 2021.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Network Server.
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 Cadence Aerospace 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 Cadence Aerospace.