Did you know that you can easily enable Kill Switch option for your Mac OS device?
Tunnelblick, a VPN client for MacOS, has a "kill switch" that can disable all network access if the VPN disconnects by some reason. It can be helpful when running an application (for example, a BitTorrent client) that you do not want to "leak" data outside Trust.Zone VPN.
With a Kill Switch for Mac OS your real IP address will never be leaked.
Read here how to make it working for Mac OS leer más...