A system of secret communication using ciphers or codes, especially one used for telephone or radio transmission.
From cipher (a secret code) combined with the suffix -phony (from Greek phone, meaning sound). The term emerged in the early 20th century as technology for secure communications developed.
This word represents the meeting of cryptography and telecommunications—intelligence agencies during WWII used ciphony systems to send secret messages over radio waves, ensuring that even if enemies intercepted the signal, they couldn't understand what was being said.
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