Keep your connection secure with our kill switch

Proton VPN’s kill switch feature blocks all network traffic in the event that you lose the connection to your chosen VPN server. The kill switch does not impact your connection quality as long as your VPN remains connected. By blocking all traffic, the kill switch stops your unique IP address from being inadvertently compromised.

When you use a VPN, your browsing activity is encrypted — hiding your IP address and protecting your private data. In the event that you lose your connection with our VPN server, the kill switch steps in and blocks your internet connection, stopping your private data from being exposed to anyone monitoring your connection (like hackers or your internet provider). Using a kill switch means you are in control of who has access to data.

Although we maintain a reliable network, there are a number of ways you can lose your VPN connection, such as:

• Poor WiFi signal strength
• Server maintenance
• Changing from one network to another (such as from WiFi to mobile)

We offer a permanent kill switch feature that prevents all connections outside the VPN interface, including on boot-up as well as if you lose your VPN connection while browsing. Permanent kill switch also stops your internet connection if you manually disconnect from the VPN.

Yes, our kill switch is available with every Proton VPN plan.