Microsoft's latest update for Office 2004 for Mac, Microsoft Office 2004 11.5.7, addresses a handful of significant security vulnerabilities surrounding specially crafted Office files that could enable an attacker to view, change, or delete data by executing remote code. The update addresses those issues by altering the way files are opened and parsed. It is rated Important for Microsoft Office 2004 for Mac and requires that you've previously installed the Microsoft Office 2004 for Mac 11.5.6 Update. The update is available from Microsoft's Web site and via the Office 2004 version of Microsoft AutoUpdate. (Free, 9.4 MB)
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.
Microsoft Office 2004 11.5.7
Convert double-sided documents to PDF with the one-button ScanSnap.
Scan documents, business cards, and receipts, and eliminate
paper piles from your desk. Visit us at: <http://www.ez.com/sstb>
Realistically, your exposure is pretty low, so I wouldn't stress about this too much, and would recommend just being a little more cautious about opening files from dubious sources.