Chiesi USA, Inc.

Chiesi USA Inc. reported a data breach to the New Hampshire Attorney General on December 22, 2025. The company detected unauthorized access to its U.S. systems on August 28, 2025. The incident affected approximately 1,835 individuals, including 9 New Hampshire residents. Personal information accessed included names, SSNs, driver's license numbers, passport numbers, medical information, financial account information, and usernames/passwords. Chiesi engaged third-party cybersecurity specialists, secured its environment, and is providing 24 months of credit monitoring through Experian.

Chiesi USA, Inc. reported an external system breach (hacking) occurring on June 23, 2025, discovered on August 28, 2025. The incident affected 1,835 individuals, including 1 Maine resident. Compromised data included names combined with [Extra1]. Chiesi engaged third-party cybersecurity specialists, secured its environment, and provided 24 months of Experian credit monitoring and identity restoration services to affected individuals.

Chiesi USA, Inc. reported a data security incident affecting Nebraska residents. On August 28, 2025, the company learned of unauthorized access to its U.S.-based systems resulting from an IT security issue impacting internal infrastructure. The breach involved names combined with an extra identifier (redacted). Chiesi engaged third-party cybersecurity specialists, secured the environment, and provided 24 months of credit monitoring via Experian. Notices were sent on December 22, 2025.

Chiesi USA, Inc. reported a data breach to the Massachusetts Office of Consumer Affairs and Business Regulation. The breach was reported on 2025-12-22. 262 Massachusetts residents were affected.

Chiesi USA, Inc. notified Vermont AG of a data breach affecting customer personal information (name plus [Extra1]) due to unauthorized access of internal IT infrastructure. Incident discovered August 28, 2025; investigation complete. Chiesi provided 24 months of credit monitoring via Experian.