Source: https://www.in.ng.mil/Portals/33/News and Media/Message_to_Force/SECDEF_OPSEC-12-4-2020/ARNG guidance for SECDEF OPSEC reinforcement_Encl 6 Insider Threat Awareness student guide.pdf?ver=73_Br3B3deCOm8oGp-ELOw==