Under watch
Status: Lawsuit filed October 2026, no settlement · Updated 2026-10-15
A former Sheppard Mullin employee sued the law firm in a proposed class action filed in federal court in California, days after the firm disclosed a data breach to state attorneys general.
The firm said a security breach on August 31 exposed information including Social Security numbers and driver's license numbers, involving a limited number of documents.
The lawsuit alleges the firm failed to adequately train employees on cybersecurity and failed to maintain reasonable safeguards. The firm has not admitted wrongdoing.
Current or former Sheppard Mullin personnel and clients whose information was exposed in the August breach.
Allegations described here are the plaintiffs' claims as reported; no court has ruled on them and no settlement exists. This page is information, not legal advice.