I sent this email out earlier today to friends & students:
For the love of Pete, people, if you use Adobe Acrobat Reader, update it.
http://krebsonsecurity.com/2010/10/reader-acrobat-patches-plug-23-security-holes/
But here’s a better question: why are you using Adobe Reader in the first place? It’s one of the WORST programs for security you can have on your computer. And most of the time, you just don’t need it!
If you use Windows, give Foxit Reader (http://www.foxitsoftware.com/pdf/reader/) a whirl. It’s free!
If you use a Mac, you already have a great PDF reader installed with your operating system: Preview. Use it.
The ONLY reason to use Adobe Reader is to fill out tax forms. When I need to do that, I download Adobe Reader, download the PDFs from the gubmint, fill out the PDFs, send ’em to the Feds & the State, & then remove Adobe Reader. I encourage others to do the same.