Robert Vamosi quoted the “unpatched” numbers for Windows Vista, Windows XP, Sun Solaris, Mac OS X, and and Ubuntu (Linux) citing the numbers from Secunia. But I believe the actual numbers of publicly disclosed vulnerabilities in Ubuntu was a bit different than Mr.Vamosi found, so I did some data gathering and analysis myself to see what I came up with. I am not criticizing them for not performing a difficult job or having the resources to keep track of 500+ distributions composed of variations of thousands of components.”]