Most advanced attacks rely as much on exploiting human flaws as on exploiting system flaws. Proofpoint developed this report, The Human Factor, to explore this under-reported aspect of enterprise threats using data gathered from the Proofpoint Targeted Attack Protection product deployed in customer environments, tracking threats in email attachments, social media posts, and URLs. This paper uses original field research to provide insight on who is clicking, and what they are clicking on, as well as when, where, where and why they’re clicking.”]
Source: https://www.bankinfosecurity.com/whitepapers/insider-threat-2015-human-factor-w-1868