In a 1,600-word-long editorial posted to the Internet early Friday morning, WikiLeaks accused the Guardian newspaper's investigative reporter David Leigh of divulging the password needed to decrypt the files in a book published earlier this year.
The Guardian and Leigh have both denied wrongdoing.
U.S. officials have said that the disclosure of the entire unredacted archive could have potentially serious consequences for informants, activists and others quoted in the cables.