An encryption key is like a password to your data. Your data is scrambled using codes that are derived from your encryption key. The data can only be unscrambled with your encryption key.  Your Rhinoback encryption key is only known by you and is never transmitted or stored at the Rhinoback storage facilities, therefore the contents of your backup data cannot be viewed by anyone without your permission.  

Note: Rhinoback employees and system administrators do not have your encryption key and have no access to the contents of your backup data.