A few weeks ago, I wrote about the security vulnerabilities in all versions of Adobe Acrobat Reader. That article is still available at http://blog.eogn.com/eastmans_online_genealogy/2009/04/update-time-to-get-rid-of-adobe-reader.html. Acrobat Reader is widely used on Windows, Macintosh, and Linux systems to read and print files that are independent of the operating system. Millions of PDF files are found on the Internet, including many genealogy-related documents.
Now Adobe has released a new version that supposedly fixes the security problems. I downloaded the new version on one of my Macintosh systems today and found the installation was simple.
If you use Adobe Reader, I would strongly suggest that you upgrade to the latest version immediately. It is available at http://www.adobe.com.
Adobe Acrobat Reader is available free of charge.