WikiLeaks 'Anonymous' hackers: 'We will fight'

If you think there's a group of nerdish hackers somewhere hunched over their computers launching cyberattacks 24-7 on companies that have refused service to WikiLeaks, you're wrong.
Helping the hacking forum known as "Anonymous" and "Operation Payback" can be as simple as sending an e-mail to one of the many websites it uses -- and letting the hackers take control of your computer.
Anonymous claimed responsibility for disabling or disrupting the sites of MasterCard, Visa and PayPal this week. The attacks came on the heels of WikiLeaks leader Julian Assange's arrest.