Venture Beat reported Thursday that a study by mobile ad tech firm AppLift and security company Forensiq says "a surprising proportion of programmatic mobile ad impressions — 34 percent to be exact — is at risk of being fraudulent." Programmatic mobile ads are served from an exchange to a network of publisher sites based on various kinds of targeting data, usually in real time. The study found that 22% of the total number of impressions studied were "suspect" for being fraudulent, while 12% of the total were at “high risk” of being fraudulent.