Kill Switch

The kill switch is a VPN ✕ A VPN routes your internet traffic through an encrypted external server. This hides your real IP address and stops third parties — like your provider or public Wi-Fi — from seeing what you do. More in the glossary → feature that automatically cuts your internet connection the moment the VPN tunnel fails. Without it, a brief VPN drop would let your device keep transmitting over the normal, unprotected connection — exposing your real IP and traffic ✕ Traffic is the amount of data your website transfers, determined by visitor numbers and page size. Some hosting plans cap monthly traffic. More in the glossary → . With the kill switch active, the connection stays blocked until the VPN is back up. For seamless privacy, it's a must-have. See which providers offer a reliable kill switch in the best VPN comparison.