Ouster
Disclosed Apr 30, 20264 months ago574 affectedConfirmed
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.
What is known
| People affected | 574 (as reported to HHS) |
|---|---|
| Disclosed | Apr 30, 2026 |
| Attack | Insider |
| Data exposed | Names, Health |
| Sector | Insurance · US |
| Status | Confirmed |
Sources
| Source | |
|---|---|
| HHS OCR breach report (archive, resolved): Ouster (Health Plan, CA)ocrportal.hhs.gov · Official notice | Official notice |
Notices filed
| Where | Filed | People |
|---|---|---|
| HHS archivetotal | Apr 30 | 574 |
History of this record
- 2026-09-25 · added · backfill source
First seen 2026-09-25 (HHS archive), confirmed by HHS OCR. Record counts are as reported. Not legal advice.