Blue Cross and Blue Shield of Massachusetts & Cierant Corporation Data Breach – Investigated by Federman & Sherwood
Oklahoma City, Oklahoma (July 8, 2025) – The law firm of Federman & Sherwood announces that it is investigating a data security incident involving Blue Cross and Blue Shield of Massachusetts, Inc. (“BCBSMA”), which recently submitted a data breach notification to the Attorney General of Maine. The breach may have compromised sensitive personal information of health plan members.
According to the notice, Cierant Corporation, a vendor of BCBSMA, detected unauthorized access to its systems on December 10, 2024, through a vulnerability in a third-party file transfer tool, Cleo VLTrader. After launching an investigation with the assistance of external cybersecurity experts, Cierant determined that certain files may have been accessed or acquired without authorization. On June 26, 2025, Cierant confirmed that specific files containing personal information were potentially affected. The exposed information may include names, addresses, and limited protected health information.
While there is currently no evidence that any individual’s data has been misused, Cierant is offering impacted individuals complimentary identity protection services, including one year of credit monitoring and identity restoration support. Impacted individuals are encouraged to enroll in these services as soon as possible.
Federman & Sherwood is actively reviewing whether adequate cybersecurity measures were in place to protect sensitive member information. The firm is committed to ensuring that companies and vendors entrusted with consumer data are held accountable when data breaches occur.
The type of information potentially exposed includes:
- Name
- Social Security numbers
- Other sensitive information
What is Blue Cross and Blue Shield of Massachusetts?
Blue Cross and Blue Shield of Massachusetts is a leading health insurance provider offering a wide range of medical, dental, and prescription coverage plans to individuals and organizations throughout the state. The company partners with vendors like Cierant Corporation to support its communication and data processing services.
If you believe you may have been affected by this incident or have received a data breach notification letter from Cierant or BCBSMA, please contact Federman & Sherwood to discuss your legal rights and potential claims.
Contact Information:
FEDERMAN & SHERWOOD
Phone: (405) 235-1560
Email : info@federmanlaw.com
Website: www.federmanlaw.com