Authentication

Purpose

Used to verify a user’s identity or secure access to an account.

When to use

• Login verification

• Account sign-ups

• Password resets

• Sensitive action confirmations

Key characteristics

• Time-sensitive

• User-initiated or system-triggered

• Contains one-time credentials or verification codes

• No marketing or promotional content allowed

Examples

• “Your OTP to log in is 482193. This code is valid for 5 minutes.”

• “Use 739201 to verify your phone number.”

• “Confirm your password reset using code 904512.”