Chiesi USA Inc. data breach

Clerk's notes

Chiesi USA Inc., a specialty pharmaceutical company, officially reported a data breach to the New Hampshire Attorney General's office on December 22, 2025. This report confirms that unauthorized parties gained access to personal information maintained by the company. The investigation into this incident is currently ongoing.

While the specific nature of the data involved has not been publicly detailed, notification letters are being distributed to individuals whose personal information may have been compromised. Receiving such a letter indicates that your data was likely included in the files affected by this security incident.

If you have received a data breach notification from Chiesi USA Inc., it is important to carefully read the document. It should provide specific details about the incident, confirm what information of yours was impacted, and outline any protective measures or identity monitoring services being offered.

As a general precaution, consider monitoring your financial accounts and credit reports for any unusual activity. It is also advisable to update passwords for critical online services and remain vigilant against unexpected communications that might attempt to solicit personal details.

Understanding your rights and potential options after a data breach is crucial. While this is attorney advertising, receiving a notification letter may prompt you to consider a free case review to discuss the circumstances of the breach and whether legal remedies may be available to you.

Seeking a review can help you understand the implications of the breach for your personal information. This process does not promise any specific results, nor does it create an attorney-client relationship, but it provides an opportunity to evaluate your situation.

If a notification letter about this breach reached you, see every New Hampshire data breach on file or browse all cases.