https://www.advanced-television.com/2021/11/05/study-ad-fraud-held-under-1-in-industry-certified-channels/
The digital ad industry reached a milestone accomplishment in its decade-long battle against ad fraud by holding invalid traffic (IVT), a key measure of such fr
ad fraudtag certifiedstudyheldchannels
https://www.marketingdive.com/news/tag-certified-channels-reduce-fraud-levels-by-more-than-83-new-study-says/512557/
The 614 Group analyzed more than 6.5 billion display and video impressions for its research with agency partners GroupM, IPG Mediabrands and Horizon Media.
tag certifiedreduce fraudchannelslevels