DHS Assistant Secretary for Cybersecurity Jeanette Manfra talks at CyberScoop’s CyberTalks in 2017. (CyberScoop) Why DHS is embracing DMARC Jeanette Manfra, Assistant Secretary for Cybersecurity and Communications at DHS, talks with Greg Otto about the order that moves federal government email security to adopt the DMARC… Nov 17, 2017 By cyberscoop_staff Jeff Stone