I've been wondering about this for a while now, its seems that linux, ubuntu in particular is picking up a lot of speed these days, with more and more people giving it a go. logic tells me that spyware and adware must become an issue at some point in the near future if ubuntu continues to gain popularity, sure its more difficult to write viruses, rootkits, malware etc for a linux based OS, but at the same time it would be in an advertiser's best interest to get it working!
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