Wikileaks is set to stop publishing classified files, following a "blockade" by US finance companies. The whistleblower website said financial services firms including Visa, Mastercard, PayPal, Western Union and Bank of America had been blocking payments since December. Wikileaks founder Julian Assange said "The attack has destroyed 95 percent of our revenue. Tens of millions of dollars" had been lost from people unable to send their money to the organisation." Meanwhile President Barack Obama has issued an executive order aimed at better securing data stored by federal agencies. The order requires the heads of all federal agencies to appoint a senior official to oversee measures for controlling and monitoring access to classified information.