The 2008 “The Insider Threat to Information Systems” SOAR was published by the Defense Technical Information Center (DTIC) under the Information Assurance Technology Analysis Center (IATAC). As heir to the IATAC, the Cyber Security and Information Systems Information Analysis Center (CSIAC) was asked to update the 2008 SOAR. The approach in producing this update was to host an Insider Threat Workshop on 15 August 2013 at the Griffiss Institute in Rome, N.Y., and to provide the findings of this open forum. The Insider Threat Workshop was a one-day review of current trends in Insider Threat tactics and remediation steps of interest to cybersecurity professionals. This report, considered to be an addendum to the original SOAR publication, includes research papers provided by attending participants, the slides from all PowerPoint presentations, and transcriptions of our panel discussions. It opens with an original paper by the Center for Infrastructure Protection and Homeland Security, George Mason University School of Law, which CSIAC commissioned for this anthology.