Computer virus made it to space!!!

Wow this is quite weird, it seems some of the personal astronaut laptops have been infected by a virus, according to NASA this is not the first time, I don't know what OS is in use by the ISS computers, both I'm sure is some UNIX derivative so we can be sure that the virus can't spread across its systems, but a virus may cause DoS if they don't actually pay ata good attention to what they're doing, anyway, to me is not a good idea to take a virus prone OS into space, you may read the full article at BBC News.