e/Secret broadcast

Information
has gloss	eng: A secret broadcast is, simply put, a broadcast that is not for the consumption of the general public. The invention of the wireless was initially greeted as a boon by armies and navies. Units could now be coordinated by nearly instant communications. It soon became clear that radio was a two edged sword. An adversary could glean valuable and sometimes decisive intelligence from intercepted radio signals:
lexicalization	eng: Secret broadcasting
lexicalization	eng: secret broadcast
instance of	c/Espionage techniques