A one-time password, also known as an OTP, is a type of authentication that requires a user to enter a unique string of numbers or characters each time they attempt to log in. This type of authentication is designed to provide an extra layer of security to user accounts by preventing unauthorized users from gaining access. OTPs are often used in combination with other types of authentication such as usernames and passwords, biometric authentication, or two-factor authentication, in order to provide a more secure layer of protection. OTPs are an effective way to protect user accounts and are becoming increasingly common for online services.
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