How to Configure VPN Kill Switch 2026

A VPN Kill Switch is one of the most important security features to protect your real IP address if your VPN connection drops.

What is a VPN Kill Switch?

It automatically cuts off your internet connection if the VPN disconnects, preventing data leaks.

How to Enable Kill Switch (Step by Step)

1. ExpressVPN

• Open ExpressVPN app
• Go to Settings → Security
• Turn ON “Network Lock” (ExpressVPN’s Kill Switch)

2. NordVPN

• Open NordVPN app
• Go to Settings
• Enable “Kill Switch”

3. Surfshark

• Open Surfshark app
• Go to Settings → Advanced
• Enable “Kill Switch”

4. Windows (Built-in)

Use the built-in kill switch in your VPN app or configure Windows Firewall rules.

5. Android

Most VPN apps have “Always-on VPN” + “Block connections without VPN” option in Android settings.

Best Practice

Always keep Kill Switch enabled when using public Wi-Fi, doing online banking, or trading crypto.