| Definition |
Communications Security (COMSEC) is a communications-security concept used to protect protocols, channels, or network traffic from disclosure, tampering, or misuse.
Communications Security is a Telecommunications security concept used to protect communications, subscribers, signaling, access, and network operations.
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| Context & Usage |
Communications Security (COMSEC) appears in secure-communications designs, certificate management, cryptographic reviews, and compliance documentation. It is retained here because professionals may encounter the term in NIST guidance, security reviews, or technical documentation and need a concise public explanation.
Security and network teams use this concept when reducing fraud, protecting subscriber identity, securing traffic, and controlling access to communications systems.
Related concepts include Telecommunications, Encryption and Authentication.
Additional Resource: FCC Telecommunications Overview.
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