Credit card companies are happy to be informed when you are travelling abroad in order to incorporate this information within their risk analysis profiles.

如果你在境外旅游的时候通知信用卡中心，它们将感到非常高兴，因为它们可以把这一信息整合到他们的风险分析数据中。

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According to the Aite Group, nearly 10 million US cardholders experienced acceptance issues with credit cards when travelling abroad in 2008.

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He said passenger profiling could only be an effective tool if used alongside other variables including travelling history, persistency of travelling and whether the journey was paid in cash or with credit cards.

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