How does one-time passcode authentication work?

Honest Dollar uses a one-time passcode login system. During the initial signup process Honest Dollar will request to send you a unique one-time passcode either through SMS or email. This code is only valid for a short period each time you request it. You use this code to complete the login process to complete the Honest Dollar application.

On every subsequent login attempt you will receive a new unique one-time passcode.