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Chiesi USA Data Breach

Chiesi USA, Inc. recently discovered a data breach affecting certain personal information. This breach, which occurred in August 2025, involved unauthorized access to Chiesi’s U.S.-based systems, exposing sensitive data of individuals, including their names and additional personal details. Chiesi has offered credit monitoring services to affected individuals, but those impacted may still be eligible for compensation.

Chiesi USA
Date of Breach: August 28, 2025
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Who was affected:

Clients of Chiesi USA

Impacted Data:

First and Last Name

Social Security Numbers

Driver’s License Details

Financial Account Information

Medical Records

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On August 28, 2025, Chiesi USA identified unusual activity suggesting unauthorized access to its systems. The company immediately initiated an investigation in collaboration with third-party cybersecurity experts to assess the breach’s scope and impact. It was determined that the breach was caused by an IT security issue within part of the company’s internal IT infrastructure.

Chiesi worked quickly to secure its environment and prevent further unauthorized access. The investigation continued over several months, during which specialists reviewed the affected data and identified the personal information of individuals involved. By December 9, 2025, Chiesi confirmed that your personal information was part of the breach.

Despite the breach, Chiesi has found no evidence of misuse of the affected information. However, as a precautionary measure, the company is offering resources to help individuals protect themselves from potential risks, such as identity theft or fraud.

When Did This Breach Occur?

The data breach was discovered on August 28, 2025, and an investigation was immediately launched to determine the cause and impact. The company completed its investigation in December 2025 and identified the individuals whose data was involved.

What Information Was Breached?

The breach potentially exposed the following types of personal information:

  • First and Last Name
  • Social Security Numbers
  • Driver’s License Details
  • Financial Account Information
  • Medical Records

While no misuse of the data has been reported, Chiesi is providing affected individuals with resources to help safeguard their information.

What You Can Do

Chiesi is offering the following steps to help protect your personal information:

  1. Activate Credit Monitoring and Identity Restoration Services: Chiesi is providing 24 months of credit monitoring and identity restoration services through Experian at no cost. You must enroll by March 31, 2026 to take advantage of this service.
  2. Monitor Your Credit Reports: Regularly review your credit reports and account statements for any suspicious activity or errors. Detecting unusual activity early can help minimize the impact of potential identity theft.
  3. Stay Vigilant: Continue to watch for signs of fraud or identity theft. If you notice anything suspicious, take action immediately to protect your identity.

Chiesi has also implemented enhanced security measures to prevent future breaches and mitigate further risks.

File a Data Breach Lawsuit Against Chiesi USA

If you received a notification from Chiesi or believe your personal information was compromised in this data breach, you may be eligible to file a lawsuit to seek compensation for potential damages.

Don’t Let This Breach Go Unchallenged. If your personal data was affected, fill out our quick, easy, and secure form to connect with a lawyer who specializes in data breach class action lawsuits. There is no cost to reach out to our legal partner, and you are under no obligation to proceed after speaking with someone from our team.

Explore your legal options today and take action to protect your rights. Contact Class Action U for a free consultation and ensure that you receive the compensation you deserve.

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Frequently Asked Questions

A data breach occurs when sensitive, confidential, or protected information is accessed, stolen, or disclosed without authorization. Data breaches often occur through phishing emails, malware, weak passwords, insider threats, or unsecured databases. Indicators of a data breach can include unexpected password resets, suspicious account activity, unauthorized transactions, or notifications from companies about compromised information.If you suspect your data has been compromised, you must take measures and act quickly. Change passwords, enable two-factor authentication, review your financial accounts for unusual activity and consider freezing your credit.

Once stolen, your personal information may be sold on the dark web or used for identity theft and financial fraud. In some cases, hackers use the data to extort companies or launch further attacks. Victims often face long-term risks, including damage to credit and privacy.

If you receive a data breach notification, don’t ignore it. Immediately change passwords for the affected account and any others that share credentials. Enroll in any free credit monitoring services offered and monitor financial statements closely.

To pursue a data breach claim, you’ll need documentation showing your information was compromised and proof of resulting harm, such as fraudulent charges, credit score damage, or identity theft reports. Notification letters, financial records, and communication with the breached company can help support your claim.

Yes. If a company fails to protect consumer data or delays notifying victims, it may be held liable under state and federal privacy laws. Many victims join class action lawsuits to recover financial losses and hold negligent organizations accountable.

Data breach settlements vary widely depending on the size of the breach, type of data compromised, and damages suffered by victims. Payouts may include cash compensation, identity theft protection, or reimbursement for losses. Many settlements range from a few hundred to several thousand dollars per person. A skilled data breach lawyer can guide victims through the complex legal process, ensuring their rights are protected. If you’ve received a data breach notification or believe your personal data was exposed, you may be eligible for compensation. Contact Class Action U to learn more about how to join a data breach lawsuit and understand the process of filing.