Google boosts ad integrity by buying British fraud fighters

Google(s goog) has bought London security startup, which deals in detecting ad fraud. Founder Douglas de Jager and his small team specialize in combating scams like hidden display ad inventory and click fraud botnets — swarms of computers that have been quietly co-opted by hackers to generate masses of click-throughs on website ads, driving revenue to the website owner without driving customers to the advertiser. Google said it will put the technology to use in its video and display ad products to give advertisers and publishers “a clearer, cleaner picture of what campaigns and media are truly delivering strong results.”