The FBI determined Keyes left behind no code or hidden message in his writings.

WSJ: Alaska killer's writings include disturbing poetry

Arrange the message in 73 rows of 23 numbers, and you get a picture painted in bits. ( Click here to see the decoded Arecibo message.) It was a novel approach, but the message was hidden, and it depended on aliens making leaps of logic in order to decipher it.

FORBES

Hidden inside the new Cyberpunk 2077 trailer is a secret message to fans.

FORBES: Move up http://i.forbesimg.com t Move down

He says hidden in the code of Netsky-AC is a sarcastic message directed toward anti-virus companies, claiming responsibility for both.

CNN: Sasser worm rips through Internet

However Lib Dem Lord Marks of Henley-on-Thames said the bill's provisions could only be said to send the wrong message because some Labour politicians had wrongly accused the government of pursuing a "hidden agenda".

BBC: Ministers offer more concessions on NHS bill

In the year to come, security professionals are warning of bank code-stealing exploits that are much slicker and more convincing--hidden in guises as harmless as a banner ad on a reputable Web site or a message from a friend on a social network.

FORBES: Future Phishing