"Anonymous" successfully took down the RIAA's Web site via a DDoS attack on Friday, although the attack was launched an hour later than expected.
The group, which also advertised its actions on the "/b/" portion of the 4chan.org bulletin board, managed to take down the site within five to seven minutes.
The Anonymous users signed on to the Low-Orbit Ion Cannon (LOIC) tool, and began trying to access the RIAA site at 5 PM ET, instead of at 4 PM as the organizers originally planned.
"[W]e started with Denial of Service attacks; we started the protest of the future by targeting websites of lobbying groups and law firms that abuse copyright law. We simply will no longer be ignored," the site said.