In a sign of the increasing tensions between WikiLeaks and the corporate world, Bank of America has said it will no longer help process payments for the organization, which released a huge cache of secret State Department cables in late November and has threatened to “take down” a major United States bank with another data dump.

“Bank of America joins in the actions previously announced by MasterCard, PayPal, Visa Europe and others and will not process transactions of any type that we have reason to believe are intended for WikiLeaks,” the bank said in a statement issued on Friday. “This decision is based upon our reasonable belief that WikiLeaks may be engaged in activities that are, among other things, inconsistent with our internal policies for processing payments.”

In a Twitter post put up soon after Bank of America’s announcement, WikiLeaks called on supporters to boycott the bank, urging that “all people who love freedom close out their accounts at Bank of America.”

After MasterCard and PayPal, which is owned by eBay, announced they would no longer handle payments for WikiLeaks, the companies were attacked by online hackers who supported WikiLeaks.