Bad Ads Outstrip Porn as Mobile Phone Infection Vectors

Trawling porn sites used to be the best way to pick up an electronically transmitted disease on your smartphone. That's changed. Every one in five times a mobile user is redirected to a malware site online, it's done through a malicious ad, according to a new report. That's three times what it was two years ago. One reason malicious ads have been able to outperform porn sites is they can garner more traffic than the smut peddlers. "We're seeing a shift in mobile user behavior," said Sasi Murthy, VP of product marketing security at Blue Coat.