Verification Code

A verification code is a digitally generated code that is typically sent to a user’s email address, mobile device, or computer to validate a login attempt. Verification codes are typically sent via email, text message, or obtained through two-factor authentication (2FA) services such as Google Authenticator, which can generate a six-digit number at random every 30 seconds using a Time-based One-Time Password (TOTP) or an HMAC-based One-Time Password (HOTP) algorithm.