Omar Santos is the technical leader for the Cisco Product Security Incident Response Team (PSIRT). He mentors and leads engineers and incident managers during the investigation and resolution of security vulnerabilities in all Cisco products. Omar has been working with information technology and cybersecurity since the mid-1990s. Omar has designed, implemented and supported numerous secure networks for Fortune 100 and 500 companies and for the U. S. government. Prior to his current role, he was a technical leader within the World Wide Security Practice and the Cisco Technical Assistance Center (TAC), where he taught, led and mentored many engineers within both organizations. John Stupid, CCIE No. 11154 (Security), is a technical leader in the Cisco Security Solutions (CSS) organization at Cisco, where he consults Cisco customers on protecting their network against existing and emerging cybersecurity threats. In this role, John is responsible for providing effective techniques using Cisco product capabilities to provide identification and mitigation solutions for Cisco customers who are concerned with current or expected security threats to their network environments. Current projects include helping customers leverage DNS and Net Flow data to identify and subsequently mitigate network-based threats. John has presented multiple times on various network security topics at Cisco Live, Black Hat and other customer-facing cybersecurity conferences. In addition, John contributes to the Cisco Security Portal through the publication of white papers, security blog posts and cyber risk report articles. Before joining Cisco, John worked as a network engineer for JPMorgan and then as a network security engineer at Time, Inc. , with both positions based in New York City. John is also a CISSP (#25525) and holds an Information Systems Security (INFOSEC) professional certification. In addition, John has a BSEE from Lehigh University and an MBA from Rutgers University. John lives in Ocean Township, New Jersey (a. k. a. the ?Jersey Shore?) with his wife, two kids and dog.