Buddhist Tzu Chi Medical Foundation

Buddhist Tzu Chi Medical Foundation, also known as California Medical Foundation, operates as a medical foundation in the United States of America. The organisation provides healthcare services to patients, as evidenced by its maintenance of medical records that include diagnoses and dental x‑rays. Its services encompass both medical and dental care, reflecting the types of data protected in the 2021 cyber incident. Headquartered in the United States, the foundation serves individuals within its geographic reach. As a foundation, it is structured as a non‑profit entity focused on delivering health‑related assistance. The organisation’s name indicates an affiliation with the broader Buddhist Tzu Chi charitable movement.

In July 2021, Buddhist Tzu Chi Medical Foundation experienced a cyberattack that rendered parts of its network inaccessible. The attack prompted immediate isolation of the affected server and activation of emergency protocols, including manual record‑keeping. Forensic analysis confirmed unauthorized access to patient data such as names, birth dates, diagnoses, and dental x‑rays. Although the investigation could not determine whether the information was viewed or exfiltrated, the organisation assessed a low risk of misuse. Affected individuals were advised to monitor their health benefit statements for any suspicious activity. The incident highlights the foundation’s responsibility to safeguard sensitive health information while continuing to provide care.