About the Technical Reviewers

John Stuppi, CCIE No. 11154, 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 cyber security 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 NetFlow 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 cyber security conferences. In addition, John contributes to the Cisco Security Portal through the publication of whitepapers, Security Blog posts, and Cyber Risk Report articles. Prior to 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 Bachelor of Science in Electrical Engineering degree 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 his dog.

Lou Ronnau is a Consulting Engineer in the Cisco Security Solutions group at Cisco Systems, where he has worked for more than 20 years. In this position, he works with customers to identify and mitigate threats to the secure operation of their data networks. Lou has presented at Cisco Live and other industry security conferences and is a Cisco Press author. In his spare time, Lou enjoys flying as a private pilot and scuba diving.