> Prosecutors said the scheme involved attacks on two banks, Rakbank, which is in the United Arab Emirates, and the Bank of Muscat in Oman.
http://www.smh.com.au/it-pro/security-it/massive-21stcentury...
edit: Oh, the NYTimes version of this story says it's a US based credit card processor name withheld http://newsdiffs.org/article-history/www.nytimes.com/2013/05... Other versions say the foreign banks themselves were the credit card processors http://mashable.com/2013/05/09/atm-hackers/