A class action lawsuit is "a special kind of lawsuit where one person, not the lawyer, but one what we call plaintiff, sues on behalf of a larger group of people, all of whom potentially suffered the same kind of injury," Zachary Clopton, a professor at Northwestern Pritzker School of Law, told NBC Local.

A Georgia resident alleges that Allstate invaded his privacy by collecting driving data through the SiriusXM app without permission.

The class action was filed in the Northern District of Illinois. It goes further than the claims on behalf of Texas consumers in the state action, and looks to encompass a national class.

Allstate and Arity have been hit with a class action lawsuit, following hot on the heels of a lawsuit from the State of Texas. The latest suit says the companies collected data on more than 45 million Americans without their consent.

Texas Attorney General Ken Paxton sued Allstate and its subsidiary, Arity, for unlawfully collecting, using, and selling data about the location and moveme