The group -- called The Lulz Boat -- also posted what it said were passwords of journalists, login information for the PBS series "Frontline" and sensitive information about PBS stations.
The Lulz Boat claims it was "less than impressed" after watching the network's program "WikiSecrets" and "decided to sail our Lulz Boat over the PBS servers for further... perusing."
PBS acknowledged the hack early this morning.
The fake Tupac story claims the rapper was "alive and well in a small resort in New Zealand," citing "locals." It goes on to say a small town there -- unnamed due to security risks -- also housed the late rapper Biggie Smalls for years.
A slogan under a "LulzSec" banner online reads, "Laughing at your security since 2011!"