动态口令（Dynamic Password），又称一次性口令（OTP-One Time Password），是相对于传统的静态口令而说的。它一般由某种终端设备，根据动态口令生成算法产生的随动态参数变化而变化的口令。
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OTP One Time Password 一次性口令
one time password-OTP Visa验证
One-Time Password OTP 一次性口令
otp-one time password
一次性密码
以上为机器翻译结果，长、整句建议使用 人工翻译 。
One solution for that is to use a one-time password (OTP) system.
这种情况的解决方案就是使用一次性密码(otp)系统。
youdao
The most obvious one to adopt appears to be the user authentication and OTP (one-time-password) that has been in existence for some time and has seen a fair degree of success in preventing fraud.
FORBES: How much should you trust your mobile phone?
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