I wonder if the size of something like Heartland skewed the results a bit? It is hard to comensate for 100Million pieces of info.
Study: Mistakes, Not Malicious Insiders, to Blame for Most Breaches
285 million records breached, most attacks came from external sources, according to Verizon study
http://www.csoonline.com/article/489644/Study_Mistakes_Not_Malicious_Insiders_to_Blame_for_Most_Breaches
“Outsiders are going to exceed insiders in number. There are more of them. It makes sense that that attack ratio would be there,” said Wade Baker, a Research and Intelligence Principal with Verizon.