Shortly after WikiLeaks -- the rogue information-gathering and dissemination website -- leaked hundreds of thousands of classified U.S. diplomatic cables to the public in 2010, Visa and MasterCard blocked donations to the site. At the time, MasterCard said it doesn't allow its customers to be engaged either directly or indirectly with illegal activity. The organization, set up by Julian Assange, says it has lost 95 percent of its revenue since the so-called financial blockade began.
However, in December 2012, a new organization called the Freedom of the Press Foundation was created and funnels donations to WikiLeaks among other organizations that execute "aggressive, public-interest journalism." The foundation takes all major credit cards for donations.
Visa and MasterCard both declined to comment on the financial blockade. WikiLeaks never signed up to accept donations through Discover or American Express.