The online whistleblower group WikiLeaks is facing an intensified backlash as it continues to release secret U.S. diplomatic cables. Crippling cyber-attacks and U.S. government pressure have forced WikiLeaks to change its website address after the firms Amazon.com and EveryDNS dropped it from their servers. The popular online payment site PayPal has cut off a vital funding channel by closing WikiLeaks’ account, which it used to collect donations. PayPal accused WikiLeaks of violating a policy barring users that “encourage, promote, facilitate or instruct others to engage in illegal activity.” WikiLeaks has denounced the moves as U.S.-backed censorship and says its supporters have established over 355 “mirror” sites to ensure the cables remain online.