Digital BW, The Print

>>According to Internet Storm Center (ISC), an unprotected computer
>>(security updates not installed)has about 20 minutes survival time
>>before it becomes infected by viruses.
> That's a fantasy.  It implies that viruses can magically infect a
> computer without any human interaction, and that just isn't true.

One such virus was the Blaster worm which exploited a flaw in the RPC 
service to infect a machine. Any unpatched windows 2000 or windows XP 
machine could be infected just by being connected to the internet. In 
fact I got infected myself, in spite of having updated versions of 
Norton Antivirus on all my machines and never opening unknown email 
attachments. If it's true that you've never patched your machine you are 
still vulnerable to this particular worm, and probably many others.

--
Daniel Staver
http://daniel.staver.no