Ad fraud will cost marketers $84 billion this year – 22% of all online ad spend. Ad fraud could be costing your brand money, hurting campaign results, leaving you with fewer genuine leads and poor advertising ROI. The research found that:22% of all online ad spend is lost due to ad fraud in 2023. 30% of mobile ad spend is lost to ad fraud in 2023. $172 Billion of ad spend is projected to be lost due to ad fraud by 2028.