Answer:

coded

Answer	Crossword Clue
CODED	Unreadable
CODED	Arranged arcanely
CODED	Like spy messages

CODED	Needing cracking
CODED	Cryptic
CODED	Like secret messages
CODED	Scrambled, as a spy's message
CODED	Like a cryptogram
CODED	Used encryption
CODED	Hard to crack
CODED	Encrypted

CODED	Like some wartime messages
CODED	Put into bars, say
CODED	Used a substitution cipher, perhaps
CODED	Secret
CODED	Ciphered
CODED	In C, perhaps
CODED	Like many wartime messages
CODED	Like a secret missive

CODED	Like some secret messages
CODED	Enciphered
CODED	Needing decryption
CODED	Not overtly legible
CODED	Like cryptic notes
CODED	Like some messages
CODED	Emulated Hammurabi
CODED	Needing deciphering

CODED	Like cryptograms
CODED	Not easy to read
CODED	Encrypted, as a message
CODED	Hard to read, maybe
CODED	Wrote an app
CODED	Wrote software
CODED	Hard to read
CODED	Prepared a military message.

CODED	Put in cipher.
CODED	Put into symbols.
CODED	Like a spy's message.
CODED	Prepared a computer card
CODED	In cipher