Some people consider Web site defacement a trivial thing, equivalent to the 'tags' spray-painted by street gangs. But there is another very reasonable way to view Web defacements, and that is as a measure of Web site security. It doesn't take a rocket scientist to understand that if someone can replace your Web server's home page, you have a security problem.
I had recently come across Attrition's page that lists Web server defacement statistics. What really caught my eye was that consistently, it is NT servers getting defaced. Averaging 60%, and hitting 64% in April 2000, NT was certainly the champ when it comes to being defaced. If you lump all Linux distributions together, they come in second with an average rate of 17%, followed by Solaris at 10% per month. And the rate of Solaris defacements has been declining, even as the NT rate has gone up.
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