Data Breach Law Group Investigates the Windels Marx Lane & Mittendorf LLP Data Breach
By Data Breach Law Group | Posted on March 30, 2026 · Indiana
Miami, FL — Data Breach Law Group is investigating a data breach involving Windels Marx Lane & Mittendorf LLP, reported to the Indiana Attorney General on March 30, 2026. The firm is reviewing whether affected individuals have legal claims arising from the incident.
Windels Marx Lane & Mittendorf LLP is a prominent law firm that provides comprehensive legal services to a diverse range of corporate and individual clients. In the course of their professional operations, the firm collects and maintains highly sensitive information, including personal identification, financial records, and confidential case-related documentation. In 2026, the firm officially reported a data security incident to the Indiana Attorney General, confirming that unauthorized access to their systems occurred. If you have received a data breach notification letter from the firm, it indicates that your personal information was stored within their environment at the time of the incident. This notice is intended to inform you of the event and provide guidance on the steps you should take to protect your identity and financial security.
If you were affected
Stay alert to targeted scams
Be cautious of calls, texts, or emails that reference this breach. Legitimate organizations won't ask you to confirm sensitive details through an unsolicited message.
Keep your notification letter
Save the notice you received. It documents that your information was involved and is often needed to enroll in any credit monitoring offered or to join a related legal claim.
Did you receive a letter from Windels Marx Lane & Mittendorf LLP?
A case review is free and confidential. Tell us about your letter and we will explain your options.