National Industrial Security Program Policy Advisory Committee - an organization committed to informing others of ways to stay secure
DMDC - a SO(security officer)/FSO(faculty security officer) is not allowed in any capacity to distribute any documents retrieved from a DOD system without written consent from the DMDC
Check out the latest DSS access magazine here https://www.dss.mil/about/err/
Personnel security clearances do not expire! https://www.dss.mil/Portals/69/documents/vroc/USDI_Memo_Personnel_Security_Clearance_in_Industry.pdf?ver=2019-01-07-142634-820
Various educational videos from ODNI (SF312, supply chain, foreign travel and more!) https://www.youtube.com/channel/UChGV60LYpVFgOWs7aeLrdEQ
Security posters https://www.cdse.edu/resources/posters.html
The DoD Manual, Industrial Security Procedures for Government Activities (DOD MANUAL 5220.22, VOLUME 2).