Security is important not only online, but also with documents you create on your PC and share with other people. Did you know there is hidden data in your documents? It's called metadata, and you may be unknowingly exposing data you really don't want other people to see. We've seen this problem with resumes we distribute… sometimes the name in the title bar doesn't match the name in the document… the name shown in the title bar comes from the metadata of a Word document. For more information, visit MetaDataRisk.org, where you'll find articles on what the problem is and how you can fix it.

http://www.metadatarisk.org/document_security/doc_security_overview.htm