Read what they have to say about the internal threat...

"Compuware Study Shows Insiders Pose Biggest Threat to Data Security

Employing Best Practices and Technology Can Protect Sensitive Data, Maintain Company Reputation and Prevent Financial Losses

DETROIT--October 13, 2008--Compuware Corporation (NASDAQ: CPWR) today announced the results of a new study, commissioned by Compuware and conducted by the Ponemon Institute©, that showed insiders were the number one cause of all data breaches with hackers ranking a distant fifth.

The survey shows insiders caused 75 percent of all breaches in the U.S. while external hackers committed only one percent of breaches. The 2008 Study on the Uncertainty of Data Breach Detection also reveals 79 percent of U.S. respondents had experienced at least one data breach.

“Enterprises must recognize that simply trusting employees will inevitably prove detrimental to their security, their risk postures and their business interests,” wrote Perry Carpenter, Gartner.[1] “A mixture of tried-and-true security practices, security awareness, and low- and high-tech toolsets will provide the most effective and comprehensive defense against the insider threat.”

The study also shows that 41 percent of all data breaches occurred in a mainframe environment, putting abundant confidential customer data at risk considering more than 80 percent of the world’s corporate and governmental data resides on mainframes.[2]"…