It seems that IE is not alone in the area of security holes. Adobe revealed that its Acrobat group of products are susceptible to a security problem û this includes Acrobat 4, Acrobat Business Tools 4 and the free Acrobat Reader 4. If a malicious user were to create a specially devised PDF file and it was then viewed in Acrobat reader, the file could crash the program or run an arbitrary code on the computer. Acrobat 4 Update 2 fixes the hole and can be applied to all three programs. It also includes fixes from update 1, which will also help with stability issues. The patch is about 2.3MB and is on the cover CD or you can download it at www.adobe.com.