Vice-presidential candidate Sarah Palin's private Yahoo e-mail account was hacked, and some of its contents posted on the internet Wednesday.

The internet griefers known as Anonymous took credit for the intrusion, and screenshots of e-mail messages and photos belonging to the Alaska governor have been published by WikiLeaks. Threat Level has confirmed the authenticity of at least one of the e-mails.

"This is a shocking invasion of the Governor's privacy and a violation of law," Rick Davis, McCain-Palin campaign manager said in a statement. "The matter has been turned over to the appropriate authorities and we hope that anyone in possession of these e-mails will destroy them. We will have no further comment."

FBI spokesman Brian Hale said, "The FBI is aware of the alleged hacking incident involving Alaska Governor Sarah Palin and is coordinating with the United States Secret Service on the matter."

A fourth screenshot shows an e-mail sent to Ivy Frye, a Palin aide, from someone claiming to belong to the group Anonymous advising that the person has changed the password to Palin's Yahoo account to prevent other members of Anonymous from accessing it again. The e-mail includes the new password.

Palin has come under fire for using private e-mail accounts to conduct state business. Critics allege that she uses the account to get around public records laws, as the Bush administration has also been charged with doing.