type: incident · created: 2026-08-11 · updated: 2026-08-11 · tags: [incident, data-breach, healthcare, privacy, research-data, sector-healthcare] · confidence: high · affected_sectors: [healthcare] · au_impact: false
Data Breaches Announced by Loma Linda University Health & UCLA Health
Two California academic providers disclosed incidents: Loma Linda University Health reported a research-study data exposure involving an external AI platform, and UCLA Health notified patients of an improper disclosure to an outside healthcare provider.
Summary
| Field | Detail |
|---|---|
| Entities | Loma Linda University Health; UCLA Health |
| Vector (Loma Linda) | Research dataset inadvertently uploaded to an external AI platform |
| Vector (UCLA) | Improper disclosure to an outside healthcare provider (Dec 2024 – April 2026) |
| Misuse | UCLA reported no evidence of misuse |
| Breach Triage | Confirmed — both first-party disclosures to state regulators |
| Date | 2026-08-10 |
Loma Linda University Health
- Reported that a dataset containing medical record numbers, dates of birth and limited clinical information from an IRB-approved research study was inadvertently uploaded to an external AI platform.
- No SSNs or financial data involved.
- Affected count not yet disclosed.
UCLA Health
- Notified patients of an improper disclosure to an outside healthcare provider occurring between December 2024 and April 2026.
- Involved names, DOBs, health insurance and clinical referral data, with last-four SSNs for a limited number of individuals.
- UCLA reported no evidence of misuse.
Related Pages
- Unlimited Technology Systems Data Breach Affects 3 8 Million Patients Largest Us — Largest US healthcare breach of 2026
Source
- HIPAA Journal — 2026-08-10
Sources: raw/digests/Cyber-Digest-2026-08-11