Minna May Design & Illustration  —  Minna So Portfolio

OfferUp: Two Factor Authentication

Two Factor Authentication


ATO (Account Takeover) spikes by bad actors have caused large volumes of accounts to be compromised. As a method to prevent account takeovers we planned to add a second level of authentication when new devices are detected during login.

When a new device is detected we will ask the customer to enter a secondary piece of authentication. We will present the option to send a one-time code via SMS to the device that they will need to enter into the input field.


My Role:

End-to-end UX/UI designer

Minna So UX Designer OfferUp Two Factor Authentication
2FA Flow.png