Lumara Bio USA Data Breach Investigation: Edelson Lechtzin LLP Probes Class Action Claims After Employee Data Including Social Security Numbers Is Exposed

National class action law firm offers free, confidential case evaluations to current and former Lumara Bio USA employees whose information may have been exposed.

PRINCETON, N.J., Oct. 28, 2026 /PRNewswire/ -- Edelson Lechtzin LLP, a national class action law firm, is investigating data privacy claims arising from a data breach at Lumara Bio USA, Inc., the Princeton, New Jersey-based oncology therapeutics division of Germany-based ITM Isotope Technologies Munich SE. Anyone who received a breach notice or believes their information may have been exposed can request a free case evaluation.

What Happened

On September 12, 2026, ITM SE, the parent company of Lumara Bio USA, became aware of a cyber-attack affecting certain ITM information technology systems. The company took the affected systems offline, engaged external cybersecurity experts, and began an investigation. The ongoing forensic investigation identified unauthorized access to ITM systems containing personal information relating to current and former Lumara Bio USA employees.

Lumara Bio USA mailed written notices to affected individuals on October 26, 2026, and reported the incident to the Massachusetts Attorney General. The notice does not state when the unauthorized access began, and the company has said its investigation is continuing.

What Information Was Exposed

According to Lumara Bio USA, the personal information involved may include:

• Names
• Addresses
• Dates of birth
• Social Security numbers
• Driver's license numbers or other government identification information
• Financial account information

Salary and Other employment-related information

Because Social Security numbers and financial account information are among the most sensitive categories of personal information, their exposure heightens the risk of identity theft and financial fraud for affected individuals.

Who May Be Affected

The investigation focuses on current and former Lumara Bio USA employees whose personnel records were maintained on the affected systems. Lumara Bio USA is offering affected individuals a complimentary 24-month membership to Experian IdentityWorks, with an enrollment deadline of January 29, 2027.

Your Legal Options

Edelson Lechtzin LLP is investigating a potential class action on behalf of individuals whose data may have been compromised. A successful case could recover compensation for losses such as lost time, out-of-pocket costs, and loss of privacy, and could press Lumara Bio USA to strengthen its data protection. The firm evaluates claims at no cost.

Recommended Steps to Protect Yourself

Watch for the notice from Lumara Bio USA by mail and keep the enclosed activation code for the complimentary Experian IdentityWorks membership.

• Place a free fraud alert or credit freeze with Equifax, Experian, and TransUnion, and obtain your free reports at AnnualCreditReport.com.
• Review your bank, card, and tax records for anything you do not recognize, and report suspected identity theft to the Federal Trade Commission at IdentityTheft.gov.

Contact Us for a Free Case Evaluation

Speak confidentially with a data privacy attorney: Marc Edelson, Esq., Edelson Lechtzin LLP, 411 S. State Street, Suite N-300, Newtown, PA 18940; Phone: 844-696-7492; Email: [email protected]; or click HERE to request a free consultation.

About Edelson Lechtzin LLP

Edelson Lechtzin LLP is a national class action law firm with offices in Pennsylvania and California. Beyond data breach litigation, the firm handles class and collective actions involving securities and investment fraud, antitrust violations, ERISA benefit plans, wage theft, and consumer fraud.

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SOURCE Edelson Lechtzin LLP