This unclassified document was published by the National Security Agency in 1999. "Today's Information Systems (IS) provide enormous leverage and access to vast amounts of sensitive, unclassified, and classified mission critical data. The potential for abuse is obvious. […] This NSTISSAM focuses on the insider and the potential damage that such an individual could cause when targeting today's IS. It points out the various weaknesses (vulnerabilities) in today's IS an insider might exploit and highlights approaches to solving these problems. In taking corrective action, it is necessary to consider technical and procedural steps in deterring the insider. Finally, we propose, in priority order, recommendations that mitigate the threat posed by the insider. Our approach is not to provide an exhaustive list, but rather offer recommendations that could have the greatest immediate return against this serious threat."
NSTISSAM INFOSEC /1-99
Committee on National Security Systems: http://www.cnss.gov