"According to anti-virus firm Trend Micro, the number of Linux viruses in the wild has not changed dramatically for two years, but its figure of 500 dangerous and exploitative programs dashing around the Internet seeking unprotected systems is cause for concern, until you look closer at the reasoning.
"Rainer Link, assistant to head of the company's EMEA (Europe, Middle East & Africa) Operations, admits the figures can be misleading and says it refers to Linux malware in general, including malware running on Linux whose ultimate target is Windows..."