Some of the fastest-growing payment systems already operate online.

一些增长最快的电子支付系统已经进行在线运作。

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Yet compared with the overall market, the new payment systems are still small.

但是同整体市场比起来，新型支付方式仍然未成气候。

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The firms running payment systems might sell information about what you buy and when.

启用支付系统的公司可能出售你购买的物品及购买时间的信息。

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This exists, more or less, in online bill payment systems that can run on BlackBerries.

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"Africa has the most advanced cell-phone-based payment systems using simple text, " Mr. Palella says.

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Last year, 130 million accounts were stolen from a payment processing company, Heartland Payment Systems.

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