Paradigm Healthcare Data Breach Affects Over 970,000 Medi-Cal Members

• •Over 970,000 Medi-Cal members affected by the breach.
• •Unauthorized access detected in October 2025, with notifications sent in September 2026.
• •No evidence of misuse of the compromised information reported by Paradigm.

Paradigm Healthcare Services reported a data breach impacting over 970,000 Medi-Cal members. Unauthorized access to its local network was detected on October 13, 2025, with an investigation revealing that sensitive files containing names, dates of birth, gender, and Medi-Cal identification numbers were accessed between October 8 and October 15, 2025. Notification letters to affected individuals were sent in September 2026, nearly a year after the breach was detected. Paradigm stated there is currently no evidence that the compromised information has been misused. The breach adds to a series of healthcare data incidents, including those involving Tarter Krinsky & Drogin and Ridgeway Pharmacy, which also reported significant breaches around the same time. No details were provided about the threat actor or how the breach occurred.