In the constant battle against bad actors, including scammers and hackers, Bing says it rejected 250 million ads, blocked 50,000 sites and banned 150,000 advertisers in 2015.
The usual suspects continue to take up the bulk of attention. Tech support scams, a perennial problem, plague the system. Bing says it blocked more than 15 million ads and 25,000 sites promoting shady third-party tech support services.
Bing has relatively lax trademark usage policies, but says it still dismissed more than 50 million ads last year for trademark infringements. Phishing attacks and ads for pharma and counterfeit goods were also at the top of the list. Additionally, more than three million misleading pages and 30 million ads were blocked for spam and misleading content.