HHS OCR report ยท 2026
Personalis, Inc. data breach
Personalis, Inc., a healthcare provider in California, reported a breach affecting 650 individuals to HHS OCR on Feb 4, 2026.
OCR report facts
- Covered entity
- Personalis, Inc.
- Entity type
- Healthcare Provider
- State
- California
- Individuals affected
- 650
- Submission date
- Feb 4, 2026
- Type of breach
- Hacking/IT Incident
- Location of breached information
- Business associate present
- No
- Status
- Under investigation
Frequently asked questions
How many people were affected by the Personalis, Inc. data breach?
The report to HHS OCR lists 650 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Feb 4, 2026.
What type of breach was it?
The OCR portal lists the type of breach as Hacking/IT Incident, with the breached information located in: Email.
Is the investigation still open?
Yes. The OCR portal lists this report as under investigation.
Is a breach notice letter from Personalis, Inc. 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 Personalis, Inc..