Site WikiLeaks is again unavailable. U.S. firm providing its domain name system said the controversial website had come under mass denial-of-service attacks.

The WikiLeaks comment appeared at odds with an earlier WikiLeaks Twitter post saying that DDOS attacks against its servers reached 10 Gigabits per second on Nov. 30. Amazon Web Services also confirmed the DDOS attacks, saying in a blog posting that, “There were indeed large-scale DDOS attacks, but they were successfully defended against.”

Wikileaks.org, which published the secret Pentagon Papers and the U.S. State Department, has suspended work several times.

Wikileaks used the power of the Swedish ISP PRQ, which is administrated by the creators of The Pirate Bay torrent tracker. In August of this year it has been equipped to protect from hacker attacks. However it did not endure, after the publication of the next portion of the disclosure. WikiLeaks had to move some of data to the U.S. Amazon Web Services server, which only lasted one day.

The reason is the pressure from the U.S., in particular the Congress.

Despite the fact that Wikileaks went back to the old ISP which does not have sufficient power, the attack on the site now has more of a psychological meaning. All posted materials are spread on torrent trackers and to remove this information from the network is impossible, “Vesti” reports.