A new study suggests that more than half of all Internet traffic is generated by non-human sources such as hacking software, scrapers and automated spam mechanisms. The majority of this non-human traffic, according to cloud service provider Incapsula, is potentially malicious. The study is based on data collected from 1,000 websites that utilize Incapsula’s services, and it determined that just 49% of Web traffic is human browsing. 20% is benign non-human search engine traffic, but 31% of all Internet traffic is tied to malicious activities. 19% is from ” ‘spies’ collecting competitive intelligence,” 5% is from automated hacking tools seeking out vulnerabilities, 5% is from scrapers and 2% is from content spammers. “Few people realize how much of their traffic is non-human, and that much of it is potentially harmful,” Incapsula co-founder Marc Gaffan told ZDNet. Incapsula, coincidentally, offers services aimed at securing small and medium businesses.