Présentation
File review was completed on January 9, 2026; data included names with SSNs and/or medical information such as doctors, diagnoses, insurance, medicines, test results, images and treatment. Media reported ransomware group claims, which were not used as evidence. 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.
Chronologie
- Survenue
- Découverte
- Divulgation
Réponse de l’organisation
Per the notice, the organisation investigated and contained the incident, notified individuals and offered monitoring or protective resources.
Que faire ?
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: MACT Health Board Inc.California Department of Justice, Office of the Attorney General · 2026-11-09
- MACT Health Board Patients Affected by November 2025 Ransomware Attack (HIPAA Journal)The HIPAA Journal · 2026-11-09
- Sample consumer notice filed with California AG (MACT Health Board Inc.)California Department of Justice, Office of the Attorney General · 2026-11-09