>From Macintouch 23.8.03 A BBC story talks about the implications of hidden data in MS Office documents:
Analysis of hidden information in the so-called Iraq "dodgy dossier" showed, among other things, the names of the four civil servants who worked on it. Downing Street press office head Alastair Campbell had to explain who these people were to the House of Commons Foreign Affairs Select Committee investigating the genesis of the plagiarised document. "The time when most information tends to leak is when you are using a document that has a number of revisions or a number of people working on it," says Nick Spenceley, founder director of computer forensics firm Inforenz. The UK government has now largely abandoned Microsoft Word for documents that become public and has turned to documents created using Adobe Acrobat which uses the Portable Data Format (PDF). [We were covering this issue in a Microsoft Security and Privacy report years ago. -MacInTouch]