Citibank has revealed that it detected a data breach last month that exposed fully 1% of all its North American credit card customers' account details.

花旗银行宣布，上月发现其系统遭黑客入侵，约有1%北美信用卡用户的账户信息泄露。

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American credit-card fraud amounts to about $5.5 billion annually.

美国每年的信用卡诈骗总额约为55亿美元。

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Despite that concern, the major credit card companies do not have imminent plans to offer chip and PIN CARDS to their American customers, even though they provide them to cardholders abroad.

这确实很值得关注。但大型信用卡公司近期都没有在美国发行芯片卡的计划，虽然它们在国外会发行。

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Merchants in many markets resent the fees American credit card giants exact.

FORBES: Magazine Article

When my wallet was lifted from my purse while walking down the street in Madrid last year, I was able to cancel my American Express credit card with a few clicks.

WSJ: Getting Going: The Hazards of Using Cards Abroad

Under such a system, for example, a store owner could give a discount to someone paying with an American Express credit card, charge extra for use of a Visa charge card and leave the price unaltered for a Visa credit card.

FORBES: Why You Will Soon Cut Up Your Debit Card