You can now add an extra layer of security for your data by using Access Groups for your Mercury Nexus accounts. You can restrict access to users by Time or IP addresses. Simply create your Access Group, select when and from where your users can access Mercury Nexus. Add the users into that Access Group and you're done.
How to create an Access Group
Access Group settings are found in the Admin App under Partner Details.
Click the Add button to create a new Access Group.
The Access Group can be controlled by Time,
Or controlled based on External IP addresses.