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Fundamentals BroadNet answer

What is OTP?

Last reviewed 1 min readReviewed by BroadNet engineering
Quick answer

OTP (One-Time Password) is a single-use code sent to a user to verify their identity for login, transaction, or account recovery. OTPs are most commonly delivered via SMS, but also via WhatsApp, email, voice, and authenticator apps. OTP is the most common form of 2FA (two-factor authentication) globally.

Plain-language definitionVendor-neutralReviewed July 20, 2026
DiagramThe OTP journey, with channel fallback
  1. User requests a codeSign-in, payment or sign-up
  2. Your app calls the verify APIOne request per code
  3. BroadNet delivers the codeOn the best available channelFallback if undeliveredSMSWhatsAppVoice
  4. User enters the codeChecked against the issued code
  5. VerifiedAccess granted
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References

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