What is OTP ?

OTP, or One-Time Password, is a security measure that utilizes a unique and non-reusable password for each authentication attempt. This system aims to enhance the security of online transactions and sensitive account access by reducing the risk of password theft and reuse. OTPs are generated dynamically and are often sent to users via secure channels such as SMS, email, or specialized mobile applications.

The core principle behind OTPs is the elimination of password reuse, which is a common security vulnerability. Traditional static passwords, if compromised, can be used repeatedly by unauthorized parties to gain access. However, with OTPs, each password is valid only once and expires after use, significantly reducing the window of opportunity for attackers.