Yusuf Bhaiji, CCIE No. 9305 (Routing & Switching and Security), has been with Cisco for seven years and is currently the program manager for Cisco CCIE security certification and CCIE proctor in the Cisco Dubai Lab. Prior to this, he was technical lead for the Sydney Technical Assistance Center (TAC) Security and VPN team. Bhaiji is an advisory board member of several non-profit organizations for the dissemination of technologies and promotion of indigenous excellence in the field of internetworking through academic and professional activities. He chairs the Networkers' Society of Pakistan (NSP) and IPv6 Forum Pakistan chapter. Bhaiji has authored two Cisco Press books: "Network Security Technologies and Solutions" and "CCIE Security Practice Labs." In addition to authoring these, he has also been a technical reviewer for several Cisco Press publications and written articles, white papers, and presentations on various security technologies. He is a frequent lecturer and well-known speaker presenting at several conferences and seminars worldwide. Bhaiji's passion for security technologies and solutions has played a dominant role in his 17 years of industry experience, from as far back as the time when he obtained his master's degree in computer science and achieving numerous certifications.