Overview
A February 12, 2026 notice on AltaMed’s website says patient names, dates of service and payment information may also have been accessed. The CA filing lists November 27, 2025 as the breach date. This is distinct from a separate incident AltaMed filed with the CA AG in June 2025. No total is given. The first-disclosure date is the earliest public document confirmed (California AG posting); no 2025 public disclosure was found in other state AG lists, HHS or company notices checked.
Timeline
- Occurred
- Discovered
- Disclosed
Organization response
Per the notice, the organisation investigated and contained the incident, notified individuals and offered monitoring or protective resources.
What you can do
Verify notices through official channels, avoid links in unexpected messages, do not provide credentials, and review credit reports and statements.
Sources
- California AG data breach report: AltaMed Health Services CorporationCalifornia Department of Justice, Office of the Attorney General · 2026-11-09
- Sample consumer notice filed with California AG (AltaMed Health Services Corporation)California Department of Justice, Office of the Attorney General · 2026-11-09
- AltaMed: Notice of Data Security Incident (2026-02-12)AltaMed Health Services Corporation · 2026-11-09