Another issue to look for in selecting a VPN is leaks, where network packets travel through the 'hostile' interface and not the VPN. Leaks can happen many ways,

Another issue to look for in selecting a VPN is leaks, where network packets travel through the 'hostile' interface and not the VPN. Leaks can happen many ways, if I understand correctly (I did some reading on it recently but not my own research): * Many VPNs use "split-tunneling': To save bandwidth, they route https traffic through the hostile network interface * Some don't route other protocols via the VPN, for example, IPv6 and even DNS are sometimes excluded. * If the VPN connection drops * When the VPN connection is out of sync with the device's network connection (e.g., after the computer boots and before the VPN starts, or after the VPN is disconnected and before the computer shuts down).