HHS OCR report ยท 2026
Ouster, Inc. data breach
OCR report facts
- Covered entity
- Ouster, Inc.
- Entity type
- Health Plan
- State
- California
- Individuals affected
- 574
- Submission date
- Apr 30, 2026
- Type of breach
- Unauthorized Access/Disclosure
- Location of breached information
- Network Server
- Business associate present
- No
- Status
- Archive (closed)
OCR description
The covered entity (CE), Ouster, Inc., reported that it was notified by its business associate (BA) that the BA experienced a breach that affected the protected health information (PHI) of 574 individuals. The PHI involved included demographic information. The CE notified HHS and the affected individuals. In response to the breach, the CE provided complimentary credit monitoring services to the affected individuals and implemented additional technical safeguards to better protect its PHI.
Text as published on the HHS OCR breach portal.
Frequently asked questions
How many people were affected by the Ouster, Inc. data breach?
The report to HHS OCR lists 574 individuals affected.
When was it reported to HHS?
It was submitted to HHS OCR on Apr 30, 2026.
What type of breach was it?
The OCR portal lists the type of breach as Unauthorized Access/Disclosure, 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 Ouster, 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 Ouster, Inc..