LinuxInsider: Attracting Attackers: Windows vs. Unix

“Lots of people believe that the reason there are more attacks
on Windows machines than on Unix machines is simply that Windows
dominates desktop markets. According to their logic, 90 plus
percent of the desktops should lead to 90 plus percent of the
attacks. The question is whether they are right.

“Look just at the number of victims and they’re more than right.
Microsoft, according to Netcraft’s surveys, only has about one
third of the Web servers on the internet, but it also has about all
of the servers known to have been compromised through external
attack…”

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