Most corporate security breaches are a result of low-tech oversights and employee negligence - not the work of systems hackers.
Insider negligence was a significant factor in more than 88 percent of all cases in a January 2009 study of the cost of data breaches by the Ponemon Institute. About 35 percent of the breaches identified in the study involved lost or stolen laptop computers or other mobile data-bearing.
People may not realize that the vast majority of high-impact security breaches - particularly the ones that involve loss of important business or personally indentifiable data -- are not not the result of a pierced and tattooed hacker in the basement, but often the result of either mistakes or mischief by insiders who have access to that data in the course of their normal work.