Much like your personal identification number (PIN), your password is your secret; if you choose your password well, it's likely difficult for others to guess it at random.

与您的个人识别号码(PIN)相同，您的密码也是保密的，如果您选择了合适的密码，那么其他的人将很难猜到它。

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Each smart card is used in combination with a personal identification number (PIN).

每一张智能卡结合使用一个个人识别密码。

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Consumption doesn't support Personal Identification Number (PIN) protection.

消费不支持个人识别码(PIN)保护。

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Each state delegation leader is provided with a special identification or pin number allowing only him or her to access the a special intranet site for delegates.

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You do this by using a personal identification number (PIN).

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The victim's card is apparently kept by the machine and the thief steps in and offers to help but asks the person to type in their Personal Identification Number (PIN).

BBC: Cash machine - generic