Related by context. Frequent words. (Click for all words.) 42 deciphered 42 decoded 41 cryptographic 39 GCHQ 38 cryptography 37 counterintelligence 36 deciphering 36 linguist 35 ciphers 35 decrypting 35 cipher 35 gleaned 34 electronic eavesdropping 34 Counterintelligence 33 decrypt 33 decipher 33 intelligence 33 linguistics 33 decode 33 eavesdroppers 33 coded messages 33 NSA 32 espionage 32 warfighting 32 Alan Turing 32 KGB 32 counterespionage 32 coded 32 decrypted 31 spy 31 debriefing 31 arcana 31 decodes 31 esoteric 31 telegraph 31 spies 31 useful 31 inscrutable 31 encrypted 30 relaying 30 eavesdropping 30 cryptic 30 teletype 30 decryption 30 computer forensics 30 covert 30 CIA 30 cyber 30 deduce 30 arcane 30 cyber warfare 30 riddles 30 spying 29 Encrypted 29 MI5 29 genealogical 29 binary code 29 deduced 29 algebraic 29 interpret 29 ham radio 29 debriefed 29 unencrypted 29 ARPANET 29 DOD 29 initialized 29 linguistic 29 unclassified 29 cyberwarfare 29 Counter Intelligence 29 transcribing 29 ferreted 28 deductive 28 pieced together 28 garbled 28 linguists 28 readable 28 MI6 28 counterinsurgency warfare 28 sleuthing 28 gleans 28 military 28 Soviet KGB 27 encrypt 27 parse 27 relayed 27 eavesdropper 27 intercepting 27 quantum physics 27 Jungian 27 gobbledygook 27 glean 27 Sudoku puzzles 27 decoding 27 jargon 27 impenetrable 27 rudimentary 27 mathematical algorithms 27 communications 27 transcribe 27 parses