what is otp code

A one-time password (OTP) is a temporary, secure PIN-code or password that is valid for only one login session or transaction. OTPs are used to authenticate a user for a single transaction or login session, and they are more secure than static passwords, especially user-created passwords, which can be weak and/or reused across multiple accounts. OTPs may replace authentication login information or may be used in addition to it to add another layer of security. OTPs can be generated using various methods, including hardware tokens, software tokens, SMS, email, and push messages. OTPs are used in various applications, such as eBanking, corporate networks, and other systems containing sensitive data. OTPs are designed to minimize the risk of fraudulent login attempts and maintain high security.