Software Engineering Institute

Current and former employees, contractors, and other organizational "insiders" pose a substantial threat by virtue of their knowledge of and access to their employers' systems and/or databases and their ability to bypass existing physical and electronic security measures through legitimate means. Previous efforts to study insider incidents have focused on convenience samples and narrow areas of industry and have not examined the incidents from both behavioral and technical perspectives simultaneously. These gaps in the literature have made it difficult for organizations to develop a comprehensive understanding of the insider threat and address the issue from an approach that draws on human resources, corporate security, and information security perspectives. 

The Secret Service National Threat Assessment Center and the CERT Coordination Center of Carnegie Mellon University's Software Engineering Institute joined efforts to conduct a unique study of insider incidents, the Insider Threat Study (ITS), examining actual cases identified through public reporting or as a computer fraud case investigated by the Secret Service. Each case was analyzed from a behavioral and a technical perspective to identify behaviors and communications in which the insiders engaged-both online and offline-prior to and including the insiders' harmful activities. Section 1 of this report presents an overview of the ITS, including its background, scope, and study methods. Section 2 reports the findings and implications specific to research conducted on insider threat cases in the banking and finance sector.