Americans are increasingly worried that terrorists could launch cyberattacks against banks, transportation networks and other critical systems, a new survey shows.

And technology experts say those fears are grounded in reality.

"I think there is an 80 percent probability we could see an attack in the next two years," said Paul Henry, vice president of CyberGuard Corp., an Internet-security firm based in Fort Lauderdale.

"We know the expertise is out there among hackers and terrorists. It's simply a question of the will of terrorists to launch an attack."

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