OOPS! The Scientologists decided to make it hard for the hackers to bring them down, so the hired a firm to protect their site:

But the Church of Scientology hired Prolexic, a company that specializes in protecting websites from DDOS attacks. Prolexic’s protection works by publicly substituting a Prolexic server for the attacked server, filtering out the bad traffic and passing the good traffic to the site’s real server.
One of the moderators on 711chan.org thought he had learned from a friend what the real server’s address was on Friday.
The user, who was using the handle Splongcat, uploaded DDOS software configured with the supposedly secret address and urged others in an internet chat room to download and run the software. The software was intended to flood the specified IP address with rogue traffic in order to bring the server down.
But within minutes, users began complaining the software was crashing and others analyzed the traffic and found that the IP address didn’t belong to the Church of Scientology, reporting that that the software was actually targeting a school in the Netherlands.
Immediately the IRC chat room hosted on 711chan.org (currently down) was filled with calls to stop using the program, and the 900 people in the chat room returned to their disorderly conversation about whether they should be flooding Digg with anti-Scientology links or making harassing phone calls to local Scientology branches.

Hackers: 0
Church of Scientology: 1