Lulz Security, a loosely aligned group of computer hackers, hacked the Senate's website this past weekend, the Sergeant at Arms Office confirmed on Monday. As a quick reaction to the latest cyber attack, a review of all Senate computer sites has been ordered.

Although this intrusion is inconvenient, it does not compromise the security of the Senate's network, its members or staff, a Sergeant at Arms Office official told Reuters.

Specifically, there is no individual user account information on the server supporting that could have been compromised, the Sergeant added.

Senate staffers asked about the hack were unaware of it.

Lulz Security, who hacked into Sony's website and the Public Broadcasting System, posted online a list of files indicating that the hackers had been into the Senate's computer network.

We don't like the U.S. government very much, Lulz Security said at the top of their release. This is a small, just-for-kicks release of some internal data from - is this an act of war, gentlemen? Problem?

The hackers' comment refers to reports that the military will use traditional military force to respond to cyber attacks from foreign countries.

They (Lulz) certainly demonstrated that they were in and they found the file server, said Stewart Baker, a former cyber official at the Department of Homeland Security.