Data Breach Law Group Investigates the Chiesi USA Inc. Data Breach
By Data Breach Law Group | Posted on December 22, 2025 · New Hampshire
Miami, FL — Data Breach Law Group is investigating a data breach involving Chiesi USA Inc., reported to the New Hampshire Attorney General on December 22, 2025. The firm is reviewing whether affected individuals have legal claims arising from the incident.
Chiesi USA Inc. is a specialty pharmaceutical company focused on developing and commercializing therapies for rare diseases and respiratory conditions. As a healthcare-related entity, the company typically collects and maintains sensitive personal information, including patient health records, prescription details, and insurance coverage data necessary for patient support programs. This data breach was officially reported to the New Hampshire Attorney General in 2025, confirming that unauthorized access to protected information occurred. If you received a data breach notification letter from Chiesi USA Inc., it indicates that your personal or health-related information was likely included in the compromised files. We recommend reviewing the letter carefully to understand the specific scope of the exposure and the identity monitoring services being offered to you.
If you were affected
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.
Did you receive a letter from Chiesi USA Inc.?
A case review is free and confidential. Tell us about your letter and we will explain your options.