Verification Code

What is Verification Code?

Definition

A verification code is a temporary code used by a system or service to confirm a user’s identity during sign-in or account verification. It is usually sent through a separate method such as text message, email, or an authentication app, and expires after a short period of time. This helps add an extra layer of security beyond a username and password alone.

Frayer Model Overview

Frayer model diagram explaining the computer term “Verification Code,” with sections for definition, characteristics, examples, and non-examples.

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Characteristics

  • Used only during sign-in or verification

  • Valid for a short time and then expires

  • Generated automatically by a system or service

  • Sent through a separate method such as text, email, or app

  • Different each time a new code is sent

Examples

  • Entering a six-digit code sent to your phone

  • Using a code from an authentication app to sign in

  • Entering an email verification code in a college portal

  • Entering a one-time code when logging in from a new device

  • Entering a code to approve account access

Non-Examples

  • A password used every time you sign in

  • A username or student ID

  • A security question answer

  • A physical key or ID card

  • A permanent PIN used for local device access

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