This artcle is not correct and it is misleading. Article is not showing exact practicle examples, What is the virus name you have seen in Linux OS?, What was that name?. I know all types of malwares and anti virus names from malware database repository.. I work for Linux Securty product .. i didn't see any virus which attacks linux. all viruses are targetted to Winodws only, because of it's simplicity it allows any kind of virus.

In early days i used Windows and experienced lot of virus attacks including harddisk damages due to virus attacks with Windows OS.

After installing Linux OS, i am able to protect my PC and didn't find any issues since 2 years.