Use File – Manage master key to encrypt your SQLite or XML data source.
The master key prevents unauthorized users to access the data source without knowing the master key. It is highly recommended to apply a master key to the data source if you are using Remote Desktop Manager in a portable environment (i.e., USB flash drive, USB hard drive).
If you ever lose your master key, Devolutions cannot recover your data. Please ensure that you remember or back up your master key in a safe place.