A Simple Cipher by Rick Groleau You could do worse than to confuse the meanings of "code" and "cipher"—even cryptographers sometime use the terms as though they had the same meaning.

Editor’s note: The headline on this article, “Cxjlrp Zfmebop,” is a simple Caesar cipher in which every letter of the original headline is shifted three letters back in the alphabet.

Sanchez determined that these images represented a simple cipher, building up to a single word per episode tying into the theme of that show. Ars first wrote about the Fringe code last week.