Best VPNs with a kill switch

A VPN encrypts your internet traffic and masks your IP address, helping you protect your online privacy. However, it doesn’t make you anonymous or protect against every online threat.

A kill switch adds protection when your VPN connection unexpectedly drops. It blocks internet access to help prevent traffic from leaving your device outside the encrypted VPN tunnel.

Here’s our list of the best VPN providers with a kill switch feature:

1. ExpressVPN. Its kill switch blocks internet traffic if the VPN connection drops. On Windows and macOS, an optional advanced mode blocks internet access whenever the VPN isn’t connected – even after a manual disconnection.
2. NordVPN. Offers two kill switch modes on Windows: one blocks internet access after an unexpected VPN drop, while the other also blocks it when you disconnect manually. Some app versions also let you close selected apps if the VPN connection fails.
3. CyberGhost. Includes an automatic kill switch that blocks traffic if the VPN connection drops, helping prevent your IP address and data from being exposed while the VPN reconnects.
4. VyprVPN. Offers a kill switch on Windows, macOS, and Android. Once enabled, it blocks internet and network traffic whenever the VPN isn’t connected, including after a device restart.
5. IPVanish. Its kill switch blocks internet traffic if the VPN connection fails, keeping it blocked until the connection is restored or you disable the feature. It also offers a separate kill switch app for Fire TV devices.

VPN providers compete on speed, server coverage, protocols, and security features. A kill switch addresses a specific privacy risk: what happens when the VPN tunnel fails but your internet connection remains active. By blocking traffic during that interruption, it helps prevent your real IP address from being exposed.

Not all kill switches work the same way. Some block internet access across your device, while others close selected apps. This distinction matters when comparing providers and deciding which settings to enable.

What is a VPN kill switch?

A VPN kill switch is a security feature that blocks internet traffic if your VPN connection unexpectedly drops. This helps prevent your real IP address and DNS requests from being exposed during a VPN reconnection.

There’s an important distinction between standard and advanced kill switches:

• Standard kill switch typically blocks traffic after an unexpected VPN disconnection, but not after a manual disconnection.
• Advanced or permanent kill switch blocks internet access whenever the VPN isn’t connected. This can also protect you if you forget to connect before browsing. Availability and behavior vary by app and operating system.

A kill switch is a useful safeguard, but it shouldn’t be the only feature you consider when choosing a VPN.

Features to look for in a VPN with a kill switch

Alongside kill switch protection, compare these features:

• Server locations: Look for coverage in the countries you need rather than choosing a VPN based on its server count alone.
• Security and privacy: Check its encryption, supported protocols, logging policy, and independent audit history.
• Performance: Prioritize consistently fast connections and unlimited data if you regularly stream, download, or play online games.
• Device compatibility: Confirm that the VPN supports your devices and offers a kill switch on the operating systems you use.
• Trial or refund policy: Check whether you can test the service through a free trial or money-back guarantee, and read the eligibility conditions.
• Payment options: Choose a convenient payment method, but don’t assume cryptocurrency makes your subscription anonymous. Bitcoin transactions are public and can be linked to your identity.
• Customer support: Look for clear setup guides and responsive support, especially if you need help configuring the kill switch.

Should you enable your VPN’s kill switch?

Enable it if you want to reduce the risk of your traffic leaving your device outside the VPN tunnel during an unexpected disconnection. If you also want protection before or after manual connection or disconnection, look for an advanced or permanent mode. Keep in mind that this mode deliberately prevents internet access until the VPN reconnects or you disable the setting.