PDF most exploited file format for 2009

MS Word is no longer king of that hill. [Link]

Adobe's ubiquitous Reader application has replaced Microsoft Word as the program that's most often targeted in malware campaigns, according to figures compiled by F-Secure.
Files based on Reader were exploited in almost 49 per cent of the targeted attacks of 2009, compared with about 39 per cent that took aim at Microsoft Word. By comparison, in 2008, Acrobat was targeted in almost 29 per cent of attacks and Word was exploited by almost 35 per cent.

"Why has it changed?" F-Secure asks here. "Primarily because there has been more vulnerabilities in Adobe Acrobat/Reader than in the Microsoft Office applications."

Adobe has been much better at deflecting blame for this. I had no idea PDFs were being exploited.