MasterCard said its June 28 Web site outage was due to a problem with its Internet provider. (Elaine Thompson/AP)

But the company said that its Web site outage was actually due to a problem with its Internet provider.

According to a report from the Associated Press, MasterCard would not say which Internet provider it used or what the problem was, but it assured its customers that no data had been compromised.

Hackers associated with Anonymous were targeting the company because it still refuses to process transactions for the whistle-blower site WikiLeaks. The hacktivist group succeeded with a similar attack last year.

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