GoKawiilVPN kill switches explained: how they stop IP leaks when connections drop
A kill switch is a VPN feature that watches the encrypted tunnel between a device and a VPN server, cutting internet access the moment that connection weakens or fails. This stops a device's real IP address or DNS requests from leaking during outages or server switches, restoring access automatically once the secure tunnel resumes. The feature comes in two forms: app-level, which blocks only chosen programs, and system-level, which halts all network traffic on the device.