WikiLeaks lost more than $50 million in potential donations after Visa Europe, MasterCard Inc. and American Express Co. blocked payments to the anti-secrecy group, according to its founder Julian Assange.

Assange said WikiLeaks and its payment-services provider DataCell want European Union antitrust regulators to reconsider a preliminary decision not to probe claims that the blockade by the card networks violated competition rules.

Limited Time Offer

Save over $700 on your subscription. Special offer expires April 30, 2017.

14-Day Free Trial

Authoritative analysis and perspective for every segment of the industry