Virus warning

I don't know whether it's a hoax or not, but just in case: Apparently, there's a new virus, discovered yesterday or so, which can burn your hard drive. So, you shouldn't open any messages with the subject "Merry Christmas", as this thing is supposedly coming from someone who has your e-mail address and so you might think that it's a real Xmas greeting.

As I said, I don't know whether it's true or not, but I thought forwarding the warning would not harm.