A Chicago law firm has sued Edelson PC for defamation, accusing the class action boutique and its founding partner, Jay Edelson, of conflicts of interest and “numerous violations of their ethical duties.”

Johnson & Bell, which Chicago-based Edelson sued last year in a high-profile data security class action, is seeking $1 million in damages, plus an unspecified amount of punitive damages. The complaint, filed on March 28 in Cook County, Illinois, Circuit Court, accuses the Edelson attorneys of using the courts to “further their own self-aggrandizement.”