What Is This About?

If you recently received a letter or an email from Cierant Corporation (“Cierant”) informing you that your sensitive personal and protected health information was compromised in a data breach, we would like to speak with you about your rights and potential legal remedies. Cierant recently disclosed that it experienced a security event involving its secure file transfer tool Cleo VLTrader, which may have exposed your personal and protected health information.

What Happened?

On December 10, 2024, Cierant became aware of suspicious activity on its Cleo VLTrader file transfer system. Cierant immediately launched an investigation with the assistance of an industry-leading cybersecurity team. The investigation determined that an unauthorized actor exploited a vulnerability in Cleo VLTrader to gain limited access to Cierant systems and may have acquired certain files containing personal and protected health information. Cierant reported the incident to federal law enforcement, notified regulators, and began sending notice letters to impacted individuals on July 3, 2025.

What Information Was Impacted?

Based on the investigation, the following types of sensitive personal and protected health information may have been involved:
  • Names;
  • Dates of Birth;
  • Addresses;
  • Health Plan Beneficiary Numbers;
  • Medical Record Numbers;
  • Premium Information;
  • Provider Names;
  • Treatment-Related Dates;
  • Claims Numbers; and
  • Descriptions of Services Received.
 

What Action Can You Take?

My Data Breach Attorney is investigating whether affected users are entitled to compensation. If you received a notice from Cierant Corporation there is no cost or obligation to participate. Follow the link below to find out about your rights and potential legal remedies available.

About Cierant Corporation

Cierant, headquartered in Danbury, CT, is a distributed marketing software company that provides high-volume member mailings for clients such as Blue Cross Blue Shield of Massachusetts by merging member data with letter files, which are then printed and mailed.

About

My Data Breach Attorney

Backed by the nationally recognized law firm Levi & Korsinsky, we combine decades of legal expertise with an unwavering focus on consumer advocacy. Levi & Korsinsky is a nationally recognized consumer advocacy law firm that has recovered hundreds of millions of dollars against the largest of corporations. The firm is a 100% contingency firm – we don't get paid unless you get paid! Prior results do not guarantee similar outcomes.

Frequently Asked Questions

Know Your Legal Rights After a Data Breach Incident

A data breach occurs when sensitive, confidential, or protected information is accessed, disclosed, or stolen without authorization. This may include personal data, financial information, medical information, or business secrets.

Our firm provides the following services:

  • Investigating the breach and determining liability.
  • Filing lawsuits or claims against negligent companies.
  • Helping recover financial damages.
  • Advising on legal steps to protect your rights.

As a consumer, you have the right to:

  • Be notified of the breach under U.S. laws, such as the California Consumer Privacy Act (CCPA) or General Data Protection Regulation (GDPR) if applicable.
  • Seek compensation for financial or reputational harm.
  • Take legal action against the entity responsible for negligence.

Depending on the case, you may be entitled to:

  • Reimbursement for financial losses (e.g., identity theft).
  • Compensation for emotional distress or loss of privacy.
  • Punitive damages if negligence is proven.

Yes, time is critical. If you suspect your data has been compromised:

  • Secure your accounts by changing passwords.
  • Monitor your credit reports for unusual activity.
  • Contact a law firm to explore legal options for compensation.

Our firm works on a contingency fee basis, meaning you pay nothing upfront. We only get paid if we recover compensation for you.

Take Action. Choose My Data Breach Attorney