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 Hackers hit Mastercard and Visa over Wikileaks row

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Number of posts : 201
Registration date : 2010-10-07

PostSubject: Hackers hit Mastercard and Visa over Wikileaks row    Wed Dec 08, 2010 11:22 pm

Mastercard and Visa both say their customers' accounts are not at risk
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Wikileaks Revelations

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Hackers have attacked the websites of credit card giants Mastercard and Visa.

The attacks came after the Anonymous group of hackers pledged to pursue firms that have withdrawn services from Wikileaks.

Mastercard payments were disrupted but the firm said there was "no impact" on people's ability to use their cards.

Visa's website also experienced problems. The attacks came after both companies stopped processing payments to the whistle-blowing site.

Entries on the Twitter page of Operation Payback, the Anonymous campaign, said the Visa site had been taken down.

Visa's website was later restored and spokesman Ted Carr said its processing network, which handles cardholder transactions, was working normally.

But in a day of fast-moving developments, the Anonymous Twitter page then went down, replaced by a message from Twitter saying the account had been suspended.

Twitter say they do not comment on "the actions we take on specific user accounts". However, a source told the BBC that the last tweet sent out by Anonymous included a link to a file containing consumer credit card information.

Paul Mutton at the security firm Netcraft, who is monitoring the attacks, said Visa is considered a more difficult target and the attack on it required a much larger number of "hacktivist" - politically motivated hackers - 2,000 compared with 400 for Mastercard.

Earlier the BBC was contacted by a payment firm linked to Mastercard that said its customers had "a complete loss of service".

In particular, it said that an authentication service for online payments known as Mastercard's SecureCode, had been disrupted.

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PayPal's Osama Bedier: "Our policy group had to make the decision of suspending the account"
Other readers have also said that they have had problems with online payments. The scale of the problems is still unclear.

Mastercard acknowledged there had been "a service disruption" involving its SecureCode system, but it added: "Our core processing capabilities have not been compromised and cardholder account data has not been placed at risk.

"While we have seen limited interruption in some web-based services, cardholders can continue to use their cards for secure transactions globally."

False account
Anonymous, which claimed to have carried out the attack, is a loose-knit group of hacktivists, with links to the notorious message board 4chan.

It said that it has hit several targets, including the website of the prosecutors who are acting in a legal case against Wikileaks founder Julian Assange.

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Websites that are bowing down to government pressure have become targets”

An Anonymous member told AFP news agency the group would extend their campaign to anyone with "an anti-Wikileaks agenda".

PayPal, which has stopped processing donations to Wikileaks, has also been targeted.

The firm said Wikileaks' account had violated its terms of services.

"On 27 November the State Department, the US government, basically wrote a letter [to Wikileaks] saying that [its] activities were deemed illegal in the United States," PayPal's Osama Bedier told the Le Web conference in France.

"And as a result our policy group had to make the decision of suspending their account.

"It's honestly, just pretty straightforward from our perspective and there's not much more to it than that," he said.

Other firms that have distanced themselves from the site have also been hit in the recent spate of attacks including the Swiss bank, PostFinance, which closed the account of Wikileaks founder Julian Assange.

The bank said Mr Assange had provided false information when opening his account.

Swamp site
Security experts said the sites had been targeted by a so-called distributed denial-of-service attack (DDoS), which swamp a site with so many page requests that it becomes overwhelmed and drops offline.

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Kristin Hrafnsson, from Wikileaks, condemned companies such as Mastercard for cutting ties with the website.
Noa Bar Yosef, a senior analyst at Imperva said the attacks were "very focused".

"It is recruiting people from within their own network. They are actually asking supporters to download a piece of code, the DDoSing malware, and upon a wake-up call the computer engages in the denial of service," he said.

Before the Mastercard attack, a member of Anonymous, who calls himself Coldblood, told the BBC that "multiple things" were being done to target companies that had stopped working with Wikileaks or which were perceived to have attacked the site.

"Websites that are bowing down to government pressure have become targets," he said.

"As an organisation we have always taken a strong stance on censorship and freedom of expression on the internet and come out against those who seek to destroy it by any means."

"We feel that Wikileaks has become more than just about leaking of documents, it has become a war ground, the people vs. the government," he said.

Some of the early DDoS hits failed to take sites offline, although that was not the point of the attacks, according to Coldblood.

"The idea is not to wipe them off but to give the companies a wake-up call," he said. "Companies will notice the increase in traffic and an increase in traffic means increase in costs associated with running a website."

DDoS attacks are illegal in many countries, including the UK.

Coldblood admitted that such attacks "may hurt people trying to get to these sites" but said it was "the only effective way to tell these companies that us, the people, are displeased".

Anonymous is also helping to create hundreds of mirror sites for Wikileaks, after its US domain name provider withdrew its services.

Coldblood said that the group was beginning to wind down the DDoS attacks so that it could concentrate on using "other methods which are more focused on supporting Wikileaks and making sure the Internet stays a free and open place".

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PostSubject: Re: Hackers hit Mastercard and Visa over Wikileaks row    Thu Jan 06, 2011 6:17 pm

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