Wisner Baum LLP Discloses October 2025 Data Security Incident
California-based law firm Wisner Baum LLP has reported a data security incident that occurred in October 2025. The firm filed notice in January 2026, indicating an ongoing investigation into the compromise of personal information. Affected individuals should monitor their accounts for unusual activity.
- State
- CA
- Breach date
- October 8, 2025
- Reported
- January 23, 2026
Wisner Baum LLP, a law firm operating in California, has formally acknowledged a data security incident affecting its systems. This disclosure was made through a public filing with regulatory bodies.
The incident was identified as having occurred on October 8, 2025. Although the public filing does not detail the specific categories of information involved, it confirmed unauthorized access to systems containing personal information. Wisner Baum LLP publicly reported this event on January 23, 2026.
At present, Wisner Baum LLP has indicated that the incident remains under investigation. The full extent of the breach and precise scope of affected data are still being determined by the firm.
Individuals who may be impacted by this incident are advised to remain vigilant. Regularly review financial statements and credit reports for any suspicious or unauthorized activity. It is also recommended to consider placing a fraud alert or security freeze on your credit files as a preventative measure to help protect your information.
This record presents a factual overview of the reported event, compiled directly from the public disclosures made by Wisner Baum LLP. It serves as an organized case file for individuals seeking documented information regarding the incident.
Source: CA Attorney General filing