From [THIS] slashdot article;

“Great report on security vulnerabilities for MS/Linux/OS X. This is a revised version of the one Jeff Jones did back on March 21: Windows Vista — 90 Day Vulnerability Report. This time he did what the Linux community had asked. Everyone complained that he did the report based on a full Linux distro including optional components, not on just a base OS install. So this time he did both; Vista still came out on top. I was shocked that Apple was even on the list as I believed all those Mac commercials!”

All those Mac users, so smug about their “INVULNERABLE” OS… Ignorant bastards.