OTP in online security stands for

OTP in online security stands for

• A. One-Time Password
• B. Online Transfer Protocol
• C. Official Token Pass
• D. Onetime Passcode

Answer: (A)

OTP stands for a password that is valid for a single use. The idea is to have a code that changes every time you log in or perform a sensitive action, so it can’t be reused if someone intercepts it. This makes authentication much stronger when combined with something you know (a regular password) and something you have (a device or app that generates the code). The code is usually short-lived and generated by a hardware token, a mobile app, or sent to you via SMS, which helps prevent replay attacks and credential stuffing. While you might see similar phrases, the standard expansion is One-Time Password. The other options don’t match how this term is used in security practice. One-Time Passcode is close in meaning but the conventional term tied to the acronym OTP is One-Time Password.

OTP stands for a password that is valid for a single use. The idea is to have a code that changes every time you log in or perform a sensitive action, so it can’t be reused if someone intercepts it. This makes authentication much stronger when combined with something you know (a regular password) and something you have (a device or app that generates the code). The code is usually short-lived and generated by a hardware token, a mobile app, or sent to you via SMS, which helps prevent replay attacks and credential stuffing. While you might see similar phrases, the standard expansion is One-Time Password. The other options don’t match how this term is used in security practice. One-Time Passcode is close in meaning but the conventional term tied to the acronym OTP is One-Time Password.