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Former Sheppard Mullin paralegal sues firm over August social-engineering data breach

By LexCircuit Desk · · AI-drafted, human-reviewed

A former Sheppard Mullin paralegal filed a proposed class action in California federal court alleging an August 31, 2026 social-engineering attack on one attorney exposed names and Social Security numbers of at least 1,000 people. Law360 reported the suit on October 8; the firm disclosed the incident to California's attorney general on October 2 and said the event was limited to one attorney.

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Key points

  • A former paralegal filed a proposed class action in California federal court.Law360
  • The suit alleges an August 31 social-engineering attack hit one attorney.Law360
  • Plaintiff says names and Social Security numbers of at least 1,000 people were exposed.Law360
  • Sheppard Mullin disclosed the incident to California's attorney general on October 2.Law360

Sources1 article across 1 outlet

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