Business partners are more than twice as likely as employees to be the source of a security breach. The report also takes a close look at network access control (NAC) and encryption as tactical tools in the fight to maintain data integrity. In food service, partners accounted for as many as 70 percent of breaches; in the technology arena, partners account for only 18 percent. A study commissioned by Symantec shows that executable files shared between users are the most common means of attack, followed by email attachments, files shared across peer-to-peer networks.”]
Source: https://www.darkreading.com/analytics/taming-the-threat-from-within-report