Kill Switch: Protect Your Privacy 24/7

A Kill Switch automatically blocks all internet traffic the moment your VPN connection drops — protecting your real IP address from being exposed. Surflare enables Kill Switch by default, so you're always protected.

  • Automatic protection — enabled by default, no setup needed
  • Instantly blocks traffic when VPN drops
  • Prevents accidental IP leaks silently
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VPN Kill Switch protection

Feature Available On

Windows

Windows

macOS

macOS

Linux

Android

Android

iOS

iOS

Router

Router

VPN Kill Switch protection

What is a VPN Kill Switch?

A VPN Kill Switch is a security feature that monitors your VPN connection in real time. The moment the VPN tunnel drops — due to a server switch, network change, or unexpected disconnect — the Kill Switch immediately cuts off all internet access.

Without a Kill Switch, a VPN dropout can silently expose your real IP address and unencrypted traffic to your ISP, network operator, or any observer. The Kill Switch prevents this from ever happening.

Surflare's Kill Switch operates at the system network level, ensuring no data leaks through any app — browser, torrent client, or messaging app — during a VPN interruption.

Kill Switch Always On

Enabled by Default — Zero Configuration

Surflare enables Kill Switch automatically the moment you connect. No settings to find, no toggles to flip — your traffic is always protected.

  • No settings to configure
  • Works on all platforms automatically
  • Always active when VPN is connected

How Does the Kill Switch Work?

Surflare's Kill Switch runs silently in the background, watching your VPN tunnel at all times.

1
VPN Connects

You connect to a Surflare VPN server. Kill Switch automatically activates and begins monitoring the tunnel.

2
Tunnel Monitored

Kill Switch constantly checks the VPN connection state. Normal traffic flows through the encrypted VPN tunnel.

3
VPN Drops

If the VPN tunnel breaks for any reason, Kill Switch instantly blocks all network traffic within milliseconds.

4
Reconnected

Once the VPN tunnel is restored, Kill Switch lifts the block and your encrypted traffic resumes automatically.

VPN connection drop scenarios

When Does a VPN Connection Drop?

VPN dropouts happen more often than most people realize. Without a Kill Switch, any of these common events can silently expose your real IP:

  • Network switching

    Moving between Wi-Fi networks, or switching from Wi-Fi to cellular, briefly disconnects the VPN.

  • Server switching

    Changing VPN servers creates a short gap between disconnecting from one and connecting to another.

  • Connection instability

    Unstable internet, ISP issues, or high network congestion can cause momentary VPN tunnel failures.

  • Device sleep/wake

    When your laptop wakes from sleep, there's a brief window before the VPN tunnel is re-established.

Why Surflare Kill Switch?

System-level protection
System-level Protection

Blocks traffic at the OS network layer, protecting every app simultaneously — not just the browser.

Always on by default
Always On by Default

No settings required. Kill Switch is active from your very first connection without any manual setup.

Millisecond response
Millisecond Response

Traffic is blocked within milliseconds of a VPN dropout — fast enough to prevent any data from leaking.

Frequently Asked Questions

What is a VPN Kill Switch?
Do I need to enable the Kill Switch in Surflare?
Does the Kill Switch work on all platforms?
Will Kill Switch block my internet if the VPN drops?
Does Kill Switch affect VPN speed?
What is the difference between Kill Switch and a firewall?
Can I disable the Kill Switch?

Stay protected even when VPN drops

Surflare's Kill Switch keeps your real IP hidden at all times — automatically enabled, no configuration required.

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VPN Kill Switch protection