The online advertising industry is rife with fraud, perhaps because it’s dominated by big tech and perhaps despite it.  Either way, ads.txt is one of the more effective measures at limiting the problem.  But this study by Sellers.Guide found errors in tens of thousands of ads.txt files, although the report doesn’t indicate what fraction of the total that represents.

Venture funding may not quite be flowing like wine anymore, but the tap isn’t completely shut.  Klaus, which uses AI to review customer support conversations so managers don’t have to, just closed a €12 million Series A.  Klaus is based in Estonia and has an exceptionally cute cat logo, if you’re tracking either of those dimensions.

CDP and marketing cloud vendor Zeta Global announced an agreement to purchase LiveIntent, which helps companies do email-based advertising.  The deal will let Zeta expand its identity graph, enter the publisher monetization business, and accelerate its mobile and retail media products.  Zeta will pay $77.5 million in cash and $172.5 million in common stock, with potential for additional payments based on performance.