Cryptography is the science of writing in secret code. Cryptography uses ciphers to transform plain text into disguised text.

What do you think describes words in disguised, or ciphered, text?

They're present but hiddenThey're gone and impossible to restore

Yes! Enciphering text disguises it and only the intended recipient can decipher it because they know the key to the cipher.

Are you sure that the information is lost by disguising it?