
Ad fraud is often described as a cat-and-mouse game, with networks’ best efforts at detection a few short steps behind bad actors’ best efforts at defrauding customers and advertisers without getting caught. (And those mice are eating a lot of cheese. Last year, the ad verification company Adloox predicted ad fraud could cost advertisers $16.4 billion in 2017—or about 20.5 percent of total global digital ad spend.)