One-time password - Wikipedia
A one-time password (OTP), also known as a one-time PIN, one-time passcode, one-time authorization code (OTAC) or dynamic password, is a password that is valid for only one login …
What is a One-time PIN code (OTP code)? - Infobip
Nov 27, 2025 · An OTP, or one-time password, is a temporary code generated by a system and used to verify a single login session, transaction, or action. Once it has been used, or once it …
What Is an OTP Code? How One-Time Passwords Work (2026)
An OTP code (one-time password) is an autogenerated passcode used for two-factor authentication. Learn how OTP codes work, benefits, and how to implement them.
One-Time Passwords (OTP): A Complete Guide - WhatsApp Business
Jul 7, 2025 · A one-time password (OTP) is a unique and temporary code used to verify a user’s identity, usually when they’re logging into their account or performing a transaction. This …
One Time Password: How OTP Authentication Works | Okta
Sep 28, 2024 · What is a One-Time Password (OTP)? A one-time password is a secure authentication code that works just once, and for a short duration, to verify a user’s Identity …
What Is OTP? Meaning, Types, and How One-Time Passwords Work
Dec 15, 2025 · OTP (One-Time Password) is a temporary passcode used for secure authentication. It works once, expires quickly, and can be delivered via SMS, email, …
OTP Meaning Explained: The Definitive Guide to One-Time …
Jan 30, 2025 · OTP stands for One-Time Password, a unique, short-lived code used to authenticate users during a single transaction or login session. Unlike static passwords, which …
What is OTP Authentication and How Does it Work?
OTP authentication (One-Time Password authentication) is a security mechanism that generates a unique, temporary code for every login or transaction. Unlike static passwords, an OTP is …
What is a one-time password (OTP)? Definition from …
Dec 28, 2023 · A one-time password (OTP) is an automatically generated numeric or alphanumeric string of characters that authenticates a user for a single transaction or login …
What is a One-Time Password (OTP) - SSL.com
Jun 28, 2024 · A One-Time Password (OTP) is a unique password valid for only one login session or transaction. Unlike traditional passwords that remain static until manually changed by the …