Soft keypads are becoming a common technique to prevent key-logger attacks on sensitive input, such as the login PIN code for online banking services.

软键盘是防止键盘记录工具窃取敏感输入信息(比如说用于在线金融服务的登录pin码)的一个常用技巧。

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After all, you don't need to input a PIN every time you use your credit card.

总之，在使用信用卡时，你不必每次输入个人识别码。

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For instance, a PIN is necessary for every purchase, and if it is input incorrectly five times, the wallet disables.

例如，购买时需要输入个人识别码，而且一旦五次输入错误，钱包自锁。

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Proving more secure, chip-and-pin cards are embedded with microchips and require cardholders to input a personal identification number rather than signing receipts.

BBC: How credit card-friendly is your next destination?