Wisner Baum LLP Investigates Data Breach Impacting Sensitive Personal Information On January 26, 2026, Edelson Lechtzin LLP announced an investigation into a data breach at Wisner Baum LLP, a Los Angeles-based law firm specializing in litigation against major corporations. The breach was first detected on October 9, 2025, when Wisner Baum identified suspicious activity on its IT network. An internal investigation revealed that an unauthorized third party accessed the firm’s systems between October 8 and October 9, 2025, potentially exfiltrating files containing sensitive personal data. Affected information may include names, driver’s license numbers, bank account and routing details, and medical records. Edelson Lechtzin LLP is exploring legal action on behalf of individuals whose data may have been compromised. The firm, known for handling class action lawsuits involving data breaches, securities fraud, and consumer protection cases, is currently gathering information from impacted parties. No further details on the scope of the breach or the number of affected individuals have been disclosed at this time. The incident remains under investigation.