That is just too funny. I wonder what that idiot 'computer guru' (ha right) on Sirius 147 Loading Dock would say now. For years the mac guys have been running their mouth off about how secure their OS is compared to any Windows platform. Ha right! Its a simple matter of numbers folks, by that I mean if you were to write a script to infect a computer would you write the script to work on 1,000 PC's or one to infect 1,000,000 PC's? Its a simple law of numbers and has nothing really to do with the actual OS, hardware or how secure they think it is. Virtually every electronic device can be hacked one way or another (heck I hacked my last cell phone just to see if I could, nothing fancy just a hexidecimal seem hack). You can hack hardware, software, infrastructure such as wifi...nothing is really immune if somebody puts their mind to it.
Sounds like they turned those mac's into zombies with some kind of IRC controller. DDOS attack anybody? Send them hungry zombies after Itunes websites and flood them till their servers cry. HAHA!