Data Privacy
Apr. 7, 2026
Clients sue Wisner Baum over delayed notice of 2025 data breach
Plaintiffs claim Wisner Baum failed to prevent a cyberattack and delayed notification, exposing sensitive data and causing anxiety, fraud risks and damages in a consolidated federal class action lawsuit.
Six representative plaintiffs have filed a consolidated federal class action complaint against Wisner Baum in Los Angeles, claiming that a preventable October 2025 cyberattack exposed the sensitive personal and medical data of thousands of clients and employees.
The complaint merges several separate lawsuits and claims the firm was negligent in its data security practices, specifically stating that the firm waited 106 days to notify victims that their Social Security numbers, ban...
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