Gregory Pickett CISSP, GCIA, GPEN has a background in intrusion analysis for Fortune 100 companies but now heads up Hellfire Security's Managed Security Services efforts and participates in their assessment practice as a network security subject matter expert. As a security professional, his primary area of focus and occasional research is networks with an interest in using network traffic to better understand, to better defend, and sometimes to better exploit the hosts that live on them.