Wisner Baum LLP, a California-based personal injury law firm, detected a data breach on October 9, 2025. Unauthorized access occurred between October 8-9, 2025, due to a vulnerability in their SonicWall firewall system. The company acknowledged the incident and mailed notifications to affected individuals starting January 21, 2026. This incident was not a vendor breach, but a direct compromise of Wisner Baum's own systems.
This breach impacted 3,154 individuals. The exposed data includes names, Social Security numbers, driver's license numbers, bank account and routing numbers, and medical information. While the company has confirmed the breach and the types of data involved, the specific full extent of the impact in all states has not been publicly released.
Data breach details can continue to emerge in the weeks and months following an incident, and notification timelines may vary.