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 session or …
What Is OTP? Meaning, Types, and How One-Time Passwords Work
6 days ago · OTP (One-Time Password) is a temporary passcode used for secure authentication. It works once, expires quickly, and can be delivered via SMS, email, authenticator apps, hardware …
One-time passwords (OTP) - Security | MDN
Nov 23, 2025 · A one-time password (OTP), also known as one-time PIN, or one-time authorization code (OTAC) is a generated code that is specific to a single login attempt. The website either sends …
OTPs Explained: OTP Meaning, Uses & Benefits - Descope
Dec 10, 2024 · An OTP—also known as a one-time PIN or one-time authorization code (OTAC)—is a unique, dynamically generated code that can only be used once to verify the user’s identity when …
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 valid only …
What Is an OTP Code? How One-Time Passwords Work (2026) - Twilio
OTP stands for "one-time password" or "one-time passcode." Both terms refer to the same thing: a temporary code used to verify your identity during login or transactions.
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 before expiring, …
Understanding OTP: How it Works and Why it is Important
Dec 9, 2025 · An OTP is a one-time password (numeric or alphanumeric) used for a single session or transaction. Unlike static passwords that can be reused, an OTP is valid only for a limited time, …
What is a One-Time Password (OTP) - SSL.com
Jun 28, 2024 · What is a One-Time Password (OTP)? A One-Time Password (OTP) is a unique password valid for only one login session or transaction. Unlike traditional passwords that remain …
Online one-time password generator / TOTP (Google Authenticator) …
TOTP.APP - is a online generator of one-time passwords, based on TOTP (RFC 6238) algorithm. A web-based analog of the Google Authenticator mobile application.