If early viruses like BubbleBoy and LoveBug make you pine for simpler times, then you are probably waging war against this millennium's far more tenacious foe: The stubborn crop of spyware that now infests three out of four PCs. From pesky adware like BonziBuddy to malicious malware like Trojan-Downloader-Zlob, spyware is literally choking corporate desktops and networks. Responsible for one out of four help desk calls and half of the PC crashes reported to Microsoft, spyware is draining IT resources and business productivity.
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