(October 19, 2017, 3:47 PM EDT) -- CHICAGO — Compensation data surveys provider Aon Consulting Inc. sued its competitor and the competitor’s subsidiary in Illinois federal court on Oct. 5, alleging that the defendants misappropriated Aon’s proprietary information and used it to improperly compete with Aon in the compensation consulting industry in violation of state and federal trade secrets laws (Aon Consulting Inc. v. Marsh Inc., et al., No. 17-7218, N.D. Ill.)....