HHS OCR report ยท 2023
Teijin Automotive Technologies Welfare Plan data breach
OCR report facts
- Covered entity
- Teijin Automotive Technologies Welfare Plan
- Entity type
- Health Plan
- State
- Michigan
- Individuals affected
- 25,464
- Submission date
- Feb 6, 2023
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Teijin Automotive Technologies Welfare Plan, reported that it experienced a ransomware incident that affected the protected health information (PHI) of 25,464 individuals. The PHI involved included names, addresses, dates of birth, Social Security numbers, and financial and health insurance information. The CE notified HHS, affected individuals, the media, and posted substitute notice on its website. In response to the breach, the CE offered free credit monitoring ser...
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Teijin Automotive Technologies Welfare Plan data breach?
The report to HHS OCR lists 25,464 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Feb 6, 2023.
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 Teijin Automotive Technologies Welfare Plan 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 Teijin Automotive Technologies Welfare Plan.