Windows worm goes on the rampage...

Infections of a worm that spreads through low security networks, memory sticks, and PCs without the latest security updates is "skyrocketing". 

The malicious program, known as Conficker, Downadup, or Kido was first discovered in October 2008. 

Anti-virus firm F-Secure estimates there are now 8.9m machines infected. More...

See also:

1. Computer worm threatening Windows world-wide...
2. Apple pushes anti-virus for Macs...
3. Microsoft to offer "Morro", a free anti-virus software...