U.S. public broadcaster PBS was attacked Sunday night by hackers who broke into their website's content management system and published a fake report claiming that slain rapper Tupac was alive and well in New Zealand.

The hackers who claimed responsibility called their group "The Lulz Boat." In a message published to their Twitter account, they claimed the attack was a response to the documentary "WikiSecrets," which was aired last week by Frontline.

They published the login information for all of the PBS server administrators, reporters, Frontline employees and other staffers, along with login information for local PBS affiliate station websites. They also posted a graphic letting PBS know they'd been hacked.

In a statement explaining their actions, the hackers said they were "less than impressed" with the "WikiSecrets" film, adding: "They best watch where they're sailing next time."