Dr. Haris Stellakis discusses the security of the SYZEFXIS national network for public administration in Greece. He outlines the history and role of the SYZEFXIS network in connecting over 4,000 public agencies since 2006. Stellakis then describes the multi-stage security architecture of SYZEFXIS, including perimeter security, centrally managed security devices, and policies regarding internal and external traffic. Finally, he previews plans to enhance security for the new SYZEFXIS II network through state-of-the-art VPN technologies, independent security auditing, and close collaboration between stakeholders.