As if you needed another reminder how insecure your machines potentially are, a new variant of the Sober worm has started doing the rounds
http://chkpt.zdnet.com/chkpt/ukzdfeed/http://news.zdnet.co.uk/0,39020330,39196991,00.htm
http://chkpt.zdnet.com/chkpt/ukzdfeed/http://news.zdnet.co.uk/0,39020330,39196991,00.htm