Madera Community Hospital
ent_0761710369c7f9c154660dc6
Disclosures
4
State AG · HHS OCR · 3 jurisdictions
Multi-filing incidents
1
incidents joining 2+ filings here
Max affected reported
150,810
nationwide · HHS OCR CA
Leak-site claims
0
none in sample
Identity resolution
- Canonical name
- Madera Community Hospital
- Normalized
- madera community hospital— dedupe via name-norm; Microsoft / MSFT collapse to one row
- GLEIF LEI
- No match
- SEC EDGAR CIK
- None — not an SEC registrant
- Domain
- reopeningmadera.org
Disclosure history (4)newest first
- Massachusetts State AGas victim2026-07-17
Madera Community Hospital reported a ransomware incident involving the Qilin threat actor. The attack occurred May 28-30, 2025, and was detected on May 29, 2025. The incident resulted in the encryption and exfiltration of PHI, PII, and financial data. Notices were mailed on July 15, 2026, to 1 Massachusetts resident and 4 Rhode Island residents. Remediation included MFA, enhanced monitoring, and patching.
- Nebraska State AGas victim2026-07-15
Madera Community Hospital notified affected individuals in Nebraska (and Rhode Island) of a cybersecurity incident detected on May 29, 2025. An unauthorized third party gained access to the network for two days in late May 2025. While no definitive proof of data exfiltration was found, potentially impacted files contained personal and protected health information. The hospital engaged forensic experts, notified law enforcement, and offered credit monitoring services.
- California State AGas victim2026-07-14
Madera Community Hospital detected suspicious network activity on May 29, 2025. An unauthorized third party accessed the network for two days in late May 2025. While initial forensics found no files taken, subsequent developments suggest files may have been acquired, though no definitive proof of PHI/PII exfiltration or public release exists. Data review completed in April 2026. Affected data includes personal information and protected health information.
- CALIFORNIAHHS OCRas victim2026-07-13
Madera Community Hospital reported to HHS on 2026-07-13 a Hacking/IT Incident affecting 150810 individuals. Breached information located on Network Server.