The attack crippled the site at about 9:45 a.m. just when the fund-raising drive was publicized on the radio by conservative talk show host Glenn Beck. The group estimates it lost about $80,000 in potential donations as it struggled to bring its site back online.

An “autopsy” showed a highly sophisticated hacker struck at 6:55 a.m., the group said, setting the stage for the eventual meltdown. The server was wiped out, though group officials said no data was lost or stolen…

“It’s like the tea party movement’s been hacked,” said the group’s spokesman, Adam Brandon. “To us, it’s no coincidence this happened the day our Beck money bomb was announced.”