Ad fraud is a term that not many people let alone business owners are aware of. Ad fraud is when an ad is being viewed by a nonperson. Combatting ad FRAUD is a great marketing investment to protect a company's return for ads spent. The root of the problem is that a majority of people don't believe that ad fraud is a problem worth solving.
This however is not true as ad fraudsters can profit off a business not taking the necessary safety precautions against fraud very easily. A business simply has to implement fraud detection based on their advertising model. For example if they have a click per click (CPC) based traffic model, a business must in turn invest in ad fraud CPC measurements.