<A target="_blank" href="http://news.bbc.co.uk/2/hi/technology/7832652.stm">With over 9 million infected machine</A>s, experts warn the worst may be yet to come as hackers haven't activated the payload of the Conficker virus. The worm is spread through low security networks, memory sticks, and PCs without current security updates. Microsoft named the relevant patch KB958644.