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...nded to be separate in the various theaters of the '''Second World War'''. Communications security, on the part of the Allies, was more centralized. Given that there were th ...g in China and Manchuria since the 1930s. They were overconfident in their communications security. <ref name=Kahn1996>{{cite book

...formation using simple technology and smart people, as well as sloppy U.S. communications security. <ref name=Fiedler>{{citation | title = Project touchdown: how we paid the price for lack of communications security in Vietnam - A costly lesson

[[Covert channel]]s are deliberate means to elude communications security<ref>{{cite web

* [[Communications security/Definition]]

* [[Communications security/Related Articles]]

...the way up to secure mobile communications. In many situations, by adding communications security features to the military sites, a new or upgraded telephone system, includi

* [[Template:Communications security/Metadata]]

...(OPSEC), a counterintelligence function within government that goes beyond communications security. ...cially in a [[compartmented control system]], as used for intelligence and communications security information.

NSA observed patterns of communications security changes that, when taken together, indicated increased preparedness for som

...working for his own Service A, but Service B has somehow managed what, in communications security, is called a man-in-the-middle attack. Service A believes it is in contact

...ogress. At least one report reached Churchill. The Germans imposed greater communications security and this source dried up. Remember that the Germans themselves had not dec

...d not share a secret key in order to communicate securely. When used for [[communications security#content confidentiality|content confidentiality]], the ''public key'' is ty

A separate SIGINT and communications security organization, or Service Cryptologic Element (SCE), existed for the US Army ...h service branch for SIGINT is not unheard of; "NSA’s Canadian cousin, the Communications Security Establishment (CSE) relies entirely upon the Canadian Forces Supplementary

...the first warning of the actual attack would be exploding bombs. Poor U.S. communications security, as well as Soviet intelligence ships in international waters near the main

...lete it unless, in my qualified opinion, it's flatly wrong. In the area of communications security, for example, there are techniques that indeed make no sense in civilian ap