Users still clinging to Windows XP like that fast and gnarly Trans Am from yesteryear that's just too familiar to part with have yet another reason to consider a new ride. According to security firm Avast, XP is a fertile breeding ground for cyber infection, especially for rootkits, of which 74 percent of infections originated from in a recent six-month study cataloging over 630,000 samples.
Windows XP is the most common operating system among Avast users with nearly half sticking with the nearly decade old OS. It's also one of the easier OSes to pirate, and according to Avast, un-patched and pirated versions of XP make up the main vector for rootkit infections.
