Glossary
A temporary, single-use code sent to verify a user's identity or authorize an action.
A one-time passcode (OTP) is a short, randomly generated code that is valid for a single use and a limited time. It is sent to a user through a channel they control — such as WhatsApp or SMS — and entered back into an app or website to verify identity or approve a transaction.
OTPs are a core element of two-factor authentication and secure flows like logins, sign-ups, and payments. Because each code is unique and expires quickly, OTPs greatly reduce the risk of unauthorized access compared with static passwords alone.
Delivering OTPs over WhatsApp can improve speed and reliability, and the copy-code button makes entering them effortless.
OTPs add a strong, simple layer of security to logins and payments, and delivering them over WhatsApp boosts reliability and speed.
Defuser AI delivers one-time passcodes through authentication templates so logins and checkouts stay secure on your WhatsApp Business API.
A temporary, single-use code sent to verify a user's identity or authorize an action.
OTPs add a strong, simple layer of security to logins and payments, and delivering them over WhatsApp boosts reliability and speed.
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