What is One-Time Password (OTP)?

What is One-Time Password (OTP)?

One-time passwords (OTP) are temporary passwords that are valid for a single login session or transaction. They are typically used as an additional layer of security for online accounts, especially for financial or sensitive transactions.

OTP can be delivered through various means such as SMS, email, or authenticator apps. When a user tries to log in, they are prompted to enter a one-time password in addition to their regular username and password. The OTP is generated by a dedicated authentication server or app, and is valid only for a limited period of time, usually a few minutes. Once the OTP has been used, it becomes invalid and cannot be reused for future logins.

One-time passwords provide an added layer of security because they are valid for only one login session or transaction. This means that even if someone gains access to a user's regular password, they will not be able to access the account without the one-time password. However, OTPs can also have their own security concerns, such as the possibility of interception or interception of the delivery method used to send them. As such, it is important to use a reliable and secure delivery method for OTPs.

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