A VPN kill switch is an internet kill switch and a vital feature of a VPN as it ensures that your data and IP address is not exposed, even if the VPN connection fails
If the VPN connection fails without a kill switch, the device will use a regular internet connection, which can expose your IP address and location as well as sensitive data to third parties monitoring the connection
There are two types of VPN kill switches: system-level and application-level, whereby the former disconnects the whole device from the internet, and the latter allows the user to select specific applications which will be disconnected if the VPN connection fails
A VPN kill switch is crucial for individuals who prioritise their online privacy and security, particularly those who wish to remain anonymous in countries with strict internet censorship, as well as those who engage in P2P and torrenting activities