What is the reasoning behind the need for cryptography within an organization? First, explain why cryptography is needed based on the potential vulnerabilities present in the absence of an encrypted network. Next, consider the following exercise:

Find a short hidden message in the list of words below.

carrot fiasco nephew spring rabbit
sonata tailor bureau legacy corona
travel bikini object happen soften
picnic option waited effigy adverb
report accuse animal shriek esteem
oyster

Hint: First and last.

Evaluate this code sequence and attempt to decode this string of characters.