2026 Quinn Emanuel — confirmed data security incident; law enforcement notified
Data compromised
Sensitive client and personal information holdings referenced; specific data elements and national count not published in open Reuters/Law360 summaries at catalog time
Technical writeup
Verified firm confirmation via Reuters and Law360 — September 3, 2026. Quinn Emanuel Urquhart & Sullivan said it suffered a recent data breach and notified law enforcement. Law360 reported the firm identified a data security incident involving unauthorized access to stored files for a single software application. Attribution unclear; relationship to contemporaneous McDermott incident unclear. National individual tally and full data-element list not in open press at catalog time. recordsAffected 0; companyConfirmed true.
Root cause
Unauthorized access to stored files for a single software application (firm statement via press)