Just received an email (allegedly) from tumppi8687@hotmail.com (never an address I've had contact with) and it was addressed to a unique email address I set up with Asetek's website for this very reason (to trap spam/worms and be able to trace them).
The body of the message was simply "Your document is attached." and there was an attachment Zone Alarm Pro had quarantined called "mp3music.PIF".
There is absolutely no way in the world anyone got this address other than from Asetek, so if you've signed up for any competitions or mailing lists from these guys, be on the lookout for any untoward emails.
Just a heads-up.