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Nelson Mullins Hit With Proposed Class Action in South Carolina Federal Court Over Early-October Breach

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Why it matters

A proposed class action has been filed in federal court in South Carolina against Nelson Mullins Riley & Scarborough LLP over a data breach the firm suffered in early October 2026. The case is in the U.S. District Court for the District of South Carolina. Law360 reported the suit on October 13, and a Substack analysis identifies it as Johnson v. Nelson, Mullins, Riley & Scarborough LLP, filed October 7. The complaint alleges the firm did not use reasonable security. The breach first surfaced through the SilentRansomGroup extortion gang, which posted a claim logged by Ransomware.live on October 5 and recorded by Breachsense on October 6. The group says it stole files and demanded $8 million to keep them from being published.

The firm has not publicly confirmed a breach. The intrusion method, timeline, and scope of affected data have not been disclosed, and no independent forensic findings have been released. The data types listed in coverage, including Social Security numbers and case files, are inferred from the kinds of records law firms hold, not confirmed. A TCPAWorld account describes a separate Nelson Mullins matter in which a threat actor allegedly accessed an employee's laptop and copied a limited set of documents. No other source corroborates that account, and the Substack author found no support for it.

The suit is one of the first tied to a new wave of breaches at large U.S. law firms. Cybernews reports that several firms were hit in recent weeks, and both incidents it describes involved social engineering. Attorneys should watch whether the firm confirms the breach and what it discloses about scope, since that will shape notification duties and damages arguments. The case may also test how courts handle claims built on unconfirmed extortion postings. Earlier suits in the same district, including the Blackbaud litigation, suggest plaintiffs in these cases often struggle to win class certification. Firms with similar exposure should review vendor access and social-engineering controls now.

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