Sheppard Mullin controversies
Controversies tied to this brand in public sources. A listing is not a finding of fault.
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2026
Sheppard Mullin Discloses August Cyberattack and Personal Data Exposure to California Attorney General
Issue disclosure
Sheppard Mullin disclosed an incident to the California attorney general's office on October 2, 2026, revealing that an attorney at the firm had fallen victim to a social engineering attack and had provided documents to an unknown third party in an August cyberattack. A former paralegal's subsequent lawsuit said the breach exposed names, Social Security numbers, and driver's license and government ID numbers, and affected at least 1,000 people.
Source excerpt
claiming that the breach exposed names and Social Security numbers, as well as driver’s license and government ID numbers
Sheppard Mullin disclosed the incident to the California attorney general’s office Oct. 2, revealing that an attorney had fallen prey to a social engineering attack and had given documents to an unknown third party.