The Wikileaks Website labored under a massive denial of service attack Tuesday, 48 hours after the site published its first installment of a massive trove of leaked U.S. diplomatic cables. The first attack, delivering 2-4 Gigabits of traffic per second, began on Sunday, November 28th, knocking the site offline for several hours. A hacker-activist calling himself The Jester (Twitter handle @th3j35t3r) has claimed responsibility for the first attack.
Source: https://threatpost.com/wikileaks-suffers-second-ddos-attack-113010/74716/