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A network that is not connected to entities or systems outside a physically controlled space.
- Browse Related Terms: Antivirus Software, Boundary Router, Cyber Crime, Cyber warfare, Cyberspace, Demilitarized Zone (DMZ), Dynamic Host Configuration Protocol (DHCP), event, firewall, High Assurance Guard (HAG), IDS Network-Based, Incident management, Malicious code (also malware), packet sniffer, Physically Isolated Network, Proxy, server, Sniffer, Social Engineering, Virtual Private Network (VPN), Wired Equivalent Privacy (WEP)