Hiding secret messages inside what seem to be harmless messages is nothing new. The word steganography itself originated in Greece and means “covered writing”. During important historic events of our ...

The idea of using music to send messages has a long history. The German Benedictine monk Johannes Trithemius is widely credited with founding the discipline in the 16th century. And various others ...

My colleague Sarah Scalet took this photograph in Brooklyn. It’s lovely, isn’t it? It’s also carrying a secret message. Spread throughout this picture are bits of information that, when decrypted and ...