In fact, it was The Guardian that was responsible for unintentionally exposing the password to an archive containing the unredacted versions of a great deal of

In fact, it was The Guardian that was responsible for unintentionally exposing the password to an archive containing the unredacted versions of a great deal of the State Department cables they had received from Wikileaks. They were somehow under the impression that the password they were given only applied to the copy of the archive that they were in possession of. When they wrote the story of the events, they included a copy of the password for the archive, despite the fact that the archive had ended up on BitTorrent.