Hiding Information in Plain Text

Subtle changes to letter shapes can embed messagesImage: Columbia University
Computer scientists have now invented a way to hide secret messages in ordinary text by imperceptibly changing the shapes of letters.The new technique, namedFontCode
, works with common font families such as Times Roman and Helvetica. It is compatible with most word-processing software, including Microsoft Word, as well as image-editing and drawing programs, such as Adobe Photoshop and Adobe Illustrator.Although there