Most of Google Ad Services traffic will be encrypted by June 30. The search giant is taking steps to encrypt the vast majority of ad traffic. Will this drive out malvertising or just send it deeper underground? The rise of encryption simply weeds out low-level attackers and sets the stage for more sophisticated threat vectors, but there is always a market for malware, security experts say. A significant reduction of man-in-the-middle attacks is expected but there will likely be a rise in more sophisticated malware that hides behind encrypted services.”]