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The tools seem to be effective. The group targeted Visa.com and MasterCard.com with DDoS attacks earlier this week after both companies halted credit card payments to WikiLeaks, essentially cutting off funding to the whistle-blower site.
Prior to the MasterCard attacks, Anonymous launched a significant series of DDoS attacks on both the PayPal blog and PayPal site, shutting down both sites for hours. In addition, the group executed a massive attack on PostFinance, the bank that took down WikiLeaks' founder Assange's defense fund, with another heavy DDoS attack, leaving customers without the ability to conduct any online banking for at least 11 hours on Monday.
Correll said that Anonymous also targeted U.S. Senator Joe Lieberman's Web site with a DDoS attack, shutting it down for about 12 minutes, and sent spam faxes to his office.
In addition, Anonymous hackers also successfully shut down the Web sites of Sarah Palin, the attorney representing the two women allegedly assaulted by WikiLeaks founder Julian Assange, as well as the site of Assange's Swedish prosecutor.
Anonymous said that there were calls to take down Amazon.com, which disconnected its servers from WikiLeaks earlier this month. While the group said attacking a major online retailer during the holidays would be “in bad taste,” reports indicated Anonymous launched several unsuccessful attempts to attack the Amazon.com platform.