For extra security, choose to mask the first 12 digits of your account numbers onscreen.
1: On your My Citi page, select My Profile.
2: Choose PROFILE in the sidebar, followed by MASKING ACCOUNT INFORMATION.
3: Enter your One Time Password (delivered by SMS) and click CONTINUE.
4: See examples of masked and unmasked account numbers.
5: Make your choice by clicking the box, then click DONE.