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Air gapped communication is the exchange of messages, voice, video, files, and operational information inside a network that is isolated from the public internet and other untrusted networks. Instead of relying on cloud messaging or conferencing services, organizations run the communication platform and its supporting services inside their own protected infrastructure.
This approach is used when communication must continue without external connectivity or when sensitive, classified, regulated, or mission-critical information cannot be exposed to ordinary internet-connected infrastructure. Typical users include defense organizations, intelligence agencies, government bodies, industrial operators, critical infrastructure providers, research facilities, and organizations operating classified or highly restricted systems.
The important distinction is that air gapped communication is not simply an offline version of a cloud collaboration app. A practical deployment needs its own communication servers, identity infrastructure, internal DNS, certificates, monitoring, storage, update process, and often private package or container repositories. What Is Air Gapped Communication?
Air gapped communication refers to communication systems that function within a network intentionally separated from external or less trusted networks.
A strict physical air gap means there is no direct network connection between the protected environment and the public internet. Data entering or leaving the environment must move through a controlled mechanism such as approved removable media, transfer stations, cross-domain systems, or other security-reviewed processes.
Organizations also use the term air gapped for logically isolated or highly restricted environments. These environments may contain controlled gateways or dedicated connections between security domains, but ordinary users and applications still cannot communicate directly with the public internet. Air Gap vs. Network Isolation An air gap therefore describes a security architecture rather than a single product feature. How Does Air Gapped Communication Work?
An air gapped communication architecture typically includes local messaging and video servers, internal identity services, DNS, certificate infrastructure, storage, monitoring, update repositories, and controlled mechanisms for moving data across the security boundary. These components must continue operating without relying on ordinary public internet services.
An isolated communication environment must contain the services that ordinary collaboration software normally obtains from the internet. A typical architecture includes:
Communication servers. Messaging, video conferencing, voice, presence, file exchange, and collaboration services run within the protected network.
Identity services. Active Directory, LDAP, SSO, certificate systems, or other identity infrastructure authenticates users without relying on external identity providers.
Air gapped communication is the exchange of messages, voice, video, files, and operational information inside a network that is isolated from the public internet and other untrusted networks.