Most Frequent Virus Attacks are done using PDF

For all those who rely on PDFs for most of your work or studies, here is something you should be careful about. Security software maker F-Secure has discovered that PDF is the most common file type in targeted attacks.

F-Secure conducted a comparative study of file types which were the most vulnerable during 2008 and 2009. The study discovered that Adobe Acrobat Reader was 28.61 percent vulnerable to target attacks in 2008. However, this figure almost doubled to 48.87 percent in 2009.
In 2008, it identified about 1968 targeted attack files. The most popular file type was DOC, i.e. MS word representing 34.55 percent.
So far, in 2009, F-Secure has found 663 targeted attack files and the most popular file type is now PDF. Why has it changed? Primarily because there has been more vulnerabilities in Adobe Acrobat Reader than in the Microsoft Office applications.