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What is a VPN Kill Switch?

Learn how a Kill Switch can prevent accidental traffic when a protected connection becomes unavailable.

Published August 13, 2026 · Reviewed by Green VPN Editorial Team · 4 min read

Connection interruptions happen

Network changes, sleep mode, server availability, and unstable Wi-Fi can interrupt a VPN connection.

How the control helps

A Kill Switch blocks supported traffic instead of letting it silently continue over the regular route.

Know the scope

Extension protection applies to its supported browser traffic. Green VPN for Windows provides broader desktop protection while the app is running.

Practical reminder

A VPN is one privacy tool, not a substitute for account security, software updates, or careful online decisions.