Scalable Exploitation of, and Responses to Information Leakage Through Hidden Data in Published Documents  

In considering the leakage of information through hidden text mechanisms in commonly used information interchange formats we demonstrate how to automate and scale the search for hidden data in Word documents. The combination of this scaling with typical behaviour patterns of Word users and the default settings of the Word program leads to an uncomfortable state of affairs for Word users concerned about information security. We discuss some countermeasures employable by users and note more general consequences of these effects.

Byers, Simon. User-Agent (2003). Articles>Word Processing>Security>Microsoft Word

Encrypting Documents

How you can be like a super secret CIA agent and encrypt documents using Word 2007.

Microsoft (2008). Articles>Word Processing>Security>Microsoft Word