The security provided for the Samsung 4G LTE network extender would consist of the appropriate adminstrator password and security question. Please see link for details.
Good question. To confirm, 4G Network Extenders are registered to your account directly. Therefore, in order for a VZW device to work in your home, they would need to be added to your account in order for the Network Extender to connect to any guest devices. Was this information helpful? You can get additional details clicking on the following link: http://spr.ly/6606Ekuxr