You've Been Framed: The Klez virus - you may have heard of it - is officially the worst virus ever, at least in terms of the breadth of infection. According to this CNN story, it now infects one in every 300 emails. It is particularly insidious because it can make your friends think you're infected when you're not. Let's say you're adam@aaa.com. In your address book is barry@bbb.com and charlie@ccc.com. Where as previous viruses would attack your machine and send mail from you (adam@aaa.com) to everyone in your address book, Klez will send infections and use names from your address book in both the "to" and the "from." So it might send an infected message from your machine to barry@bbb.com from charlie@ccc.com. You then discover Barry and Charlie are not speaking because of something to do with email, and no one has any idea it's your fault for getting yourself infected.

The mind reels at the scandalous emails you could send and, when confronted, blame it on the Klez virus.

But that would be wrong.

As always the thing to do keep your virus definition up to date and NEVER OPEN AN EMAIL ATTACHMENT if you aren't sure what it is.