Use File - Manage Password to apply a Master Key or Encryption key to these types of data source:
It is generally a good idea to apply a Master Key to your data source, as it adds another layer of security protecting your Remote Sessions. It is highly advisable to implement the Master Key functionality if you're using Password Vault Manager in a portable environment (i.e. USB Flash Drive, USB Hard Drive), or if the data source is the portable portion of the application.
The use of the Master Key function will stop unauthorized users from being able to easily see/access the stored Sessions within your Data Source.
Data Source Password