On July 20, 2026, another California federal court denied class certification in a putative privacy class action involving a company’s cookie-based advertising platform. Lewis v. Magnite, Inc., 2:25-cv-03448-MWC-SSC (C.D. Cal. July 20, 2026). The plaintiffs alleged that Magnite secretly installed tracking cookies—called “khaos IDs”—on users’ browsers to collect data for targeted advertising. The claims
Class Certification
Another Internet Tracking Class Action Failed at Certification—Here’s Why It Matters
By Nathaniel Cardinal & J. Matthew Thornton on
Wiretapping class actions based on websites’ use of common tracking technologies continue to rise. And because many courts have allowed these cases to survive motions to dismiss, businesses often feel pressure to settle early—even when they have strong defenses.
Much of that pressure comes from the threat of a class wide judgment reaching eight or…