"Republican staff members of the US Senate Judiciary Commitee infiltrated opposition computer files for a year, monitoring secret strategy memos and periodically passing on copies to the media"
- Boston.com / News / Nation / Infiltration of files seen as extensive
The details of the breech aren't detailed until the last paragraph: "A technician hired by the new judiciary chairman, Patrick Leahy, Democrat of Vermont, apparently made a mistake that allowed anyone to access newly created accounts on a Judiciary Committee server shared by both parties -- even though the accounts were supposed to restrict access only to those with the right password."