You can use the "OTP" feature CROSStrax offers, which is commonly known as 2 Factor Authentication. This will require users to enter a code they receive via email in order to log in.
To activate this feature go to the left Navigation Bar and click "Settings".
In the Users & Security Section - Click on 2 Factor Password Authentication
Select "Enable" under OTP, select how long you want the code to be valid for, then click "Save"
You will also need to make sure that the OTP is enabled for each user in their profile. To do this, follow the below steps:
1) Go to your profile by clicking on your name in the top right corner of the screen, then click "My Profile". (This can also be done from the "Admin Users" tab in the left-hand navigation bar)
2) Click in the "OTP Type" box and select if you would like your second factor to be by email or SMS
3) Scroll to the bottom of the page and click "Submit".
