div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Demystifying and Preventing Ad Fraud in Digital€¦ · up of ad frauds happening in performance marketing campaigns Lead punching fraud happens when advertisers demand down the src=https:reader034vdocumentinreader034viewer20220427095f5291c7b4d21f65d60dfd7ahtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: Demystifying and Preventing Ad Fraud in Digital€¦ · up of ad frauds happening in performance marketing campaigns Lead punching fraud happens when advertisers demand down the src=https:reader034vdocumentinreader034viewer20220427095f5291c7b4d21f65d60dfd7ahtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 3button div class=ts-image amp-img class=ts-thumb alt=Page 3: Demystifying and Preventing Ad Fraud in Digital€¦ · up of ad frauds happening in performance marketing campaigns Lead punching fraud happens when advertisers demand down the src=https:reader034vdocumentinreader034viewer20220427095f5291c7b4d21f65d60dfd7ahtml5thumbnails3jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 4button div class=ts-image amp-img class=ts-thumb alt=Page 4: Demystifying and Preventing Ad Fraud in Digital€¦ · up of ad frauds happening in performance marketing campaigns Lead punching fraud happens when advertisers demand down the src=https:reader034vdocumentinreader034viewer20220427095f5291c7b4d21f65d60dfd7ahtml5thumbnails4jpg width=142 height=106 layout=responsive amp-img divdiv