Electronic payment service PayPal has been hit by a distributed denial of service (DDoS) attack after the oufit stopped taking donations on behalf of WikiLeaks.
An online army of WikiLeaks supports downed the PayPal blog for more than eight hours, according to a report by security researcher Sean-Paul Correll at Panda Labs.
Hacking group Anonymous claimed to have been behind the attack, posting on the Anonymous Twitter account: "TANGO DOWN — thepaypalblog.com — Blog of Paypal, company that has restricted Wikileaks’ access to funding."
In a statement sent to Correll, Anonymous said: "While we don’t have much of an affiliation with Wikileaks, we fight for the same: we want transparency (in our case in copyright) and we counter censorship.
"The attempts to silence Wikileaks are long strides closer to a world where we can not say what we think and not express how we feel.
"Except for the usual DDoSing, word will be spread that whoever tries to silence or discourage Wikileaks, favors world domination rather than freedom and democracy.”
PayPal claimed it shut down Wikileaks' account because the "payment service cannot be used for any activities that encourage, promote, facilitate or instruct others to engage in illegal activity".
It didn't explain how the leaking of information can be regarded as illegal.