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OTP stands for the one-time password or one-time passcode and is a form of multi factor authentication (MFA). Almost every website or application now supports the functionality of the OTP due to rising security concerns. When you create a new account on a website or an application, or even if you are an existing user of any particular app, you can enable the OTP to protect the misuse of your data and identity theft.

Once enabled, the system then asks you to put in your email address or mobile phone, over which it sends a code each time you enter your login credentials. You then must enter that code alongside your credentials to successfully log into your account. If the OTP you received does not match the entered OTP, the system will give you an error, and you will not be able to log in successfully.

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