A WIRED investigation into the inner workings of Google's advertising ecosystem reveals that a wealth of sensitive information on Americans is being openly served up to some of the world's largest brands despite the company's own rules against it. Experts say that when combined with other data, this information could be used to identify and target specific individuals. Display & Video 360 (DV360), one of the dominant marketing platforms offered by the search giant, is offering companies globally the option of targeting devices in the United States based on lists of internet users believed to suffer from chronic illnesses and financial distress, among other categories of personal data that are ostensibly banned under Google's public policies. Among a list of 33,000 audience segments obtained by the ICCL, WIRED identified several that aimed to identify people working sensitive government jobs. One, for instance, targets US government employees who are considered "decision makers" working "specifically in the field of national security." Another targets individuals who work at companies registered with the State Department to manufacture and export defense-related technologies, from missiles and space launch vehicles to cryptographic systems that house classified military and intelligence data. In the wrong hands, sensitive insights gained through [commercially available information] could facilitate blackmail, stalking, harassment, and public shaming.