“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 grouMasterCard.com DOWN!!!, thats what you get when you mess with @wikileaks @Anon_Central and the enter community of lulz loving individuals :D’,’ they posted. “
Source: MasterCard website is target of cyber attack | Metro.co.uk