According to the Federal Bureau of Investigation (FBI) and Carnegie
Mellon University, all the complaints about Microsoft having security
problems are bunk. In fact, a report from the two organizations
specifically calls for all the finger-pointing to stop because all
technology is inherently vulnerable, and simply blaming Microsoft for
everything obscures a bigger problem: Microsoft doesn’t own or control
the Internet infrastructure, which is extremely vulnerable to attack.
Furthermore, the report says, more than 90 percent of all
Microsoft-related attacks–including the two most infamous recent
attacks, MSBlaster and SoBig.F–involved vulnerabilities that the
company had already fixed.
http://www.winnetmag.com/Article/ArticleID/40785/Windows_40785.html