Mun joined Cisco in 2000. During his tenure with the Security team, Mun has led several key product lines including Firewall, IPS, VPN, Data Center/SP security, SDN, cloud security and DDoS, and holds three patents in this area. Mun led a team to focus on Content (Email and Web) security and SaaS based security services. Most recently, Mun leads Product Management teams focused on email security and network analytics. Prior to his role in security, Mun also brought to market new and emerging technologies in the video and collaboration space, in the area of media transformation for Telepresence.