Web sites owned by the Federal Trade Commission and the Bureau of Consumer Protection were hacked on Thursday night and have taken down, the FTC confirmed Friday.

Websites owned by the Federal Trade Commission and the Bureau of Consumer Protection were hacked on Thursday night and have taken down, the FTC confirmed Friday.

Members of the Anonymous group originally announced the hack on Thursday night, and a log of the attacks was posted to the Pastebin site. The Pastebin post was authored by "Anonymous AntiSec"; AntiSec is to be a joint effort on the part of Anonymous and the LulzSec hacker group.

An FTC spokeswoman confirmed the hack on Friday morning.

"The Bureau of Consumer Protection's Business Center website and the partnership site NCPW run by the Federal Trade Commission were hacked earlier today," the agency said in a statement. "The FTC takes these malicious acts seriously. The sites have been taken down and will be brought back up when we're satisfied that any vulnerability has been addressed."

The groups said that they had taken down servers belonging to at least seven domains, which apparently are used for internal use, including business.ftc.gov, consumer.gov, and consumer.ftc.gov. The Bureau of Consumer Protection, which uses the www.ftc.gov/bcp/consumer.shtm address, was accessible Friday morning.

The groups also claimed that they currently owned hundreds of rooted servers, even "child pr0n [porn] and mail spools," along with passwords, email addresses, and online dating materials.

The attack is the second on an FTC-owned site within a month. On Jan. 24, Anonymous hacked OnguardOnline.com, which is owned by the FTC. The site is officially down, although the FTC resources the site previously hosted are now again publicly available.

Anonymous recently , as well.

Anonymous said that the motivation for the attacks was the FTC's apparent reluctance to block to allow it to combine user information from its multiple services, as well as the agency's alleged inaction on Do Not Call requests made online. The Pastebin text also included a short diatribe against from several groups.

The Pastebin also listed names, hashed passwords, and several email addresses associated with representatives of the Fleishman PR agency as well as attorneys and other members of the FTC. Several names on the list also appeared in a pastebin post tied to the OnlineOnguard.com hack.