PayPal copped to US State Department pressure:
The site’s vice-president of platform, Osama Bedier, told an internet conference the site had decided to freeze WikiLeaks’s account on 4 December after government representatives said it was engaged in illegal activity.
“State Dept told us these were illegal activities. It was straightforward,” he told the LeWeb conference in Paris, adding: “We … comply with regulations around the world, making sure that we protect our brand.”
Actually Bedier was being a bit of a drama-llama. Backstage he explained that the State Department did not directly talk to PayPal, and their decision to stop flowing $ to WIkileaks was based a nastygram from the State Department to Wikileaks.
MasterCard’s excuse per Guardian UK:
MasterCard rules prohibit customers from directly or indirectly engaging in or facilitating any action that is illegal.
I am at a loss as to how supporting a defense fund is illegal.
And if you want to give to Wikileaks, PhoenixWoman has some links