"It's scary," one executive said, speaking on condition of anonymity. "People are very, very nervous for their security."

SYDNEY, Australia -- A whistle-blower organization claims a secret list of websites that Australian authorities are proposing to ban in a campaign against child pornography includes such innocuous destinations as a dentist's office.

Australia's government denied that the list, published by renegade website Wikileaks.org, was the same as a blacklist run by the Australian Communications and Media Authority, or ACMA. However, a manager at the dentist's office said the authority had confirmed her site was on the ban list.