Working with Data Encryption in Navision 2016

You can encrypt data on the Microsoft Dynamics NAV Server by generating new or importing existing encryption keys.
How to: Enable Encryption Keys
You can enable data encryption on the Microsoft Dynamics…(read more)

https://community.dynamics.com/nav/b/technicaltipsandtricksfordynamicsnav/archive/2015/11/02/working-with-data-encryption-in-navision-2016