MasterCard appears to have suffered a second online attack from hackers, months after it was first hit by hackers.

article 1309341925708 0CC8CF5700000578 284325 466x310 - MasterCard website is target of cyber attack
The MasterCard website was inaccessible for much of the day

The credit card company’s website could not be accessed for large parts of the day, security experts said.
Twitter user called ‘Ibom Hacktivist’ boasted the attack was for its refusal to process donations for the whistleblowing site WikiLeaks.
‘A DOWN!!!, thats what you get when you mess with @wikileaks @Anon_Central and the enter community of lulz loving individuals ’,’ they posted.

The assault came after hacking group LulzSec said it was disbanding last week following a seven-week spree that targeted the FBI, Metropolitan Police and the Serious and Organised Crime Agency websites.

The six-member LulzSec crew has reportedly rejoined Anonymous, the group of hackers that launched online attacks against MasterCard, Visa and PayPal in defence of WikiLeaks.

MasterCard’s website ‘appeared to have been hit by a denial-of-service attack’, said Graham Cluley, senior technology consultant, at internet security company Sophos.

‘This is where an internet site is bombarded with a large amount of traffic making it impossible for genuine visitors to access it. LulzSec may have sailed over the horizon but that doesn’t mean that there won’t be more hacks and internet attacks,’ Mr Cluley added.

MasterCard confirmed its website was offline and an investigation found the problem was due to a ‘telecommunications/Internet Service Provider outage that impacted multiple users’. It added: ‘No cardholder data has been impacted.’