The other problem is what little vetting the ad platforms do is easy to circumvent when they allow advertisers to host their own content. A few years ago the Ne

The other problem is what little vetting the ad platforms do is easy to circumvent when they allow advertisers to host their own content. A few years ago the New York Times was serving out malware because they approved an ad and later the advertiser swapped it for an exploit. http://bits.blogs.nytimes.com/2009/09/14/times-site-was-victim-of-a-malicious-ad-swap/ http://bits.blogs.nytimes.com/2009/09/14/times-site-was-vict...