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communications security
China, law	电信安全
el.	通信保密
IT	通信安全性; 通信安全
tech.	交通安全
communication security
gen.	通信安全保护
agric.	通信安全性
avia.	通信保密措施; 通信保安
hydroel.st.	传输安全性
space	通信保密 (性); 通信安全
textile	通信保密; 交通安全
English thesaurus
communications security
tech., abbr.	comm scty
USA	The protection resulting from all measures designed to deny unauthorized persons information of value that might be derived from the possession and study of telecommunications, or to mislead unauthorized persons in their interpretation of the results of such possession and study (JP 6-0)
communication security
mil., logist.	The protection resulting from the application of cryptographic, transmission, emission and physical security measures to deny unauthorized persons any information of value which might be derived from the study of all means of communication. (FRA)
communication security COMSEC / TRANSEC
mil., logist.	Protection resulting from all measures aimed at denying access of unauthorized personnel to information gathered from the study of telecommunications. It comprises: 1. the security of transmissions; 2. the control of emissions; 3. ciphering; 4. physical security measures for communication systems, equipment and information. FRA

communications security: 34 phrases in 9 subjects

Air defense	8
Aviation	4
Communications	1
Computer networks	1
Electronics	7
General	1
Hydroelectric power stations	2
Information technology	3
Space	7