Cryptography in this article?
"The possibility of dropping hidden messages within the lowest bits of noisy sound files is not new in itself. Wojciech Mazurczyk and Krzysztof Szczypiorski, security researchers at Warsaw University of Technology, Poland"
Well I would have said that there was a hidden message encoded in the names of the researchers, but then I realised they were just Polish.
Mine's the one with the Optician's chart in the pocket.