While a VPN is an excellent tool which encrypts and anonymizes traffic, it’s not 100% reliable. The main reason is the VPN software's behavior in case of dropped connections.
A dropped connection with the VPN server can leave your IP address and transferred traffic exposed. In most cases of disconnection, users don’t know that their VPN connections are no longer working. In case of a dropped connection, traffic becomes unencrypted and insecure. Internet traffic becomes visible to government agencies and ISPs.
Unfortunately, most VPN providers do nothing about this. Luckily, there is a solution to avoid real IP address and data leaks. This feature is called an ‘Internet Kill Switch’.

An Internet Kill Switch, also known as a VPN Kill Switch, blocks all outgoing and incoming traffic if the internet connection drops for any reason. The Kill Switch is a special part of the software that constantly monitors the VPN internet connection for any changes in the IP address. If your VPN connection drops for any reason, a change of IP address occurs. In this case, the Kill Switch feature will block your computer from connecting to the internet until the VPN connection is active again. So, your data and IP address will never be exposed to your ISP or government agencies.

This feature is extremely important for BitTorrent users and torrent fans because BitTorrent users don’t want their identities and IP addresses exposed to ISPs or government agencies.
Trust.Zone VPN, the leading VPN service for torrenting, recommends that the Kill Switch is always enabled in order to prevent insecure traffic, logins, passwords, bank details, etc., from being leaked.
According to Trust.Zone, the Kill Switch feature is a must-have for users who leave BitTorrent clients running while they are away from their computers and also use a VPN to hide their identities.
Trust.Zone VPN provides Windows users with a Kill Switch feature for its VPN software. With the Trust.Zone VPN Kill Switch, you will not keep downloading files if the connection drops.
Trust.Zone VPN with the Kill Switch feature enabled is available for free.