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VPN kill switch: emergency kill switch

There is no doubt that all of us have experienced a disconnection from the internet. Not gonna lie, it’s a frustrating process. Just imagine if it goes worse: once you disconnect from the network, all your data gets exposed. However, that's not gonna happen if you use a VPN, and your provider offers you a VPN kill switch option.

We all know that, sometimes, even the most trustable gadgets break. Especially when we are speaking about the internet connection. At times it disrupts your casual surfing online just when you’ve expected it the least.

Imagine if you’re using a VPN without a kill switch. Things may go worse.

What is a VPN?

If you’re familiar with this, just skip to the next part, where I will be talking about a VPN kill switch. If not, a VPN is a Virtual private network.

A VPN hides your IP address from other users, so your activity online doesn’t get exposed. It encrypts your information and even protects you when you’re using public WiFi.

With a VPN, your IP address is well hidden, especially when you’re torrenting, streaming, or doing any other not-so-legal activity. For only a few dollars, you have your bodyguard right here.

VPN kill switch: downloading

People all around the globe use VPNs mainly for security and anonymity reasons while participating in online activities. There is no doubt that we all like privacy and VPN providers offer not only that but much more. It also allows you to access geo-restricted content that you’d like to reach in your own country, but you can’t.

For example, if you want to see Harry Potter on Netflix and you’re not in Spain or Portugal, you’d need a VPN, because it's only accessible in those particular countries. It’s that simple. If I were you, I’d get a VPN straight away. Just because I love Harry Potter.

Let’s get back to business, though. We’ve gathered here to find out what is a VPN kill switch and not to discuss about wizards.

However, a VPN kill switch is nothing else but a wizard. Its duties can definitely suit a wizard’s role. While dark powers of an online world are trying to steal your personal information and disturb your privacy, a kill switch VPN offers is there to help you.

What is a VPN Kill Switch?

In more simple terms, a VPN kill switch is a unique VPN feature that turns on when you lose connection to the network.

When you accidentally disconnect from a VPN network, your computer immediately switches back to a default IP address (provided by your Internet Service Provider). If you don’t have a VPN kill switch feature, your online activities can be exposed easily.

VPN kill switch: exposed online

Worth to know that most of the top VPN providers out there have this superb feature.

If you do have a kill switch VPN provided, this feature immediately switches off your internet connection. It blocks your device or any apps that you’re using to prevent this possible exposure.

It’s basically the last man standing, your goalkeeper.

It protects your real IP address and location after you lose contact with a VPN server. This feature really helps if you don’t even notice you lost your connection to a VPN provider and continue browsing with your primary IP address provided by your ISP.

Sometimes, a kill switch even saves lives. Imagine, if you’re a journalist in an authoritarian regime where the government blocks most of the content you need for your research. 

Your freedom and even life could depend on this if you don't have a kill switch feature and you lose your connection to a VPN network. All your data gets exposed. Nevertheless, a VPN kill switch is a savior here - believe me, journalists know the answer to the question "what is VPN kill switch?".

However, not everyone is a journalist. Since I’ve told you what is a VPN kill switch, I’d like to explain why every person could need it.

Why Would You Need a VPN Kill Switch?

There are many different reasons why people need a VPN kill switch. First of all, a it protects your sensitive, personal data. If you want to keep your IP address well-hidden from potential hackers, government officials, or any internet users, you will need a kill switch.

While you’re using a VPN provider that does not offer a kill switch feature, you’re fine until your connection to the network drops. As I mentioned, you may not even feel it and still keep surfing with your real IP address, thinking you are using VPN services.

VPN kill switch: browsing online

Luckily, with a VPN kill switch, your identity and your IP address will always be protected against the internet criminals, and you’d never have to worry about that again.

Secondly, the same thing could be said about torrenting. While it’s not a legal thing to do, without a kill switch feature, your downloads could be easily exposed once you lose connection to a VPN network.

Here, a kill switch feature comes as a watchdog. When you’re downloading big chunks of torrent files, you may not even be near your computer when your VPN connection goes off. However, with this feature, you would be able to leave your device and do deal with your own stuff.

Finally, with a VPN kill switch feature, you would surely be able to travel safely with your laptop or a smartphone wherever you want.

Imagine being on a train or waiting for your flight at an airport. You’re using public WiFi that probably a few thousand other people use. Potentially, even some semi-pro hackers who have tools to access your personal information. But you think that you’re using a VPN service, and your personal data is fine.

That's false, though: if your VPN provider doesn’t offer you a kill switch feature, and you lose your connection to the network for a second, all your sensitive data gets exposed to the whole airport.

I believe not a single person on Earth would want this to happen.

How Does a Kill Switch Work?

Let’s get to the more complicated stuff. Hopefully, after the last part, you’re pretty sure about what is VPN kill switch. Now, for those who wonder how does a kill switch work, I have an answer for you.

A VPN kill switch usually works by monitoring your connection to a VPN provider’s servers. It instantly sees and detects if any changes to your connection happen.

Once a connection to the network is lost, a VPN kill switch feature functions as a firewall

VPN kill switch: firewall

If you specify any particular apps that can be vulnerable when the connection is lost, a kill switch feature terminates these apps. It disallows them to send unwanted and unprotected information to the internet.

Usually, the process of terminating the connection takes only a few seconds. After a VPN kill switch acts, it takes your device back to the previous VPN server you were attached to. That's what most of the top VPN providers do. 

Speaking about turning on the kill switch feature, most of the time, you’ll need to do it only once and manually through your provider’s application.

It’s worth knowing that a kill switch feature for smartphones is required to have in California from 2015.

However, it has nothing to do with a VPN kill switch. Even most of the machinery, such as locomotives, tower cranes, or elevators, have kill switches in case an emergency happens.

Speaking about smartphones, California legalized a kill switch feature in 2015 to protect citizens’ personal data. Since introducing this law, phone thefts have dropped in the region.

Why Does a VPN Disconnect?

Firstly, the most obvious reason. Connection to a VPN can disappear very often if you have a slow internet speed. It’s that simple. A weak WiFi signal will take down your VPN every single time. Just because you’re connecting to a distant server, it doesn’t mean your WiFi usage is redundant.

Internet connection is almost as unpredictable as the weather. But we probably know that if you take an umbrella with you, there is nothing to worry about when you go outside. In a virtual world, a VPN kill switch is your umbrella. Once you get it, you’re safe.

VPN kill switch: internet umbrella

Other common reasons include your firewall, router, or other network gateway device’s settings. They might cause you a disconnection if they’re not set up correctly. Your PC protection apps, even antivirus software, can block VPN network’s features, so make sure you add your VPN provider’s app to the exceptions list on your firewall.

An overloaded server can also be a reason. If you accidentally select a VPN server that is congested with users, that might force your connection to go off. Make sure you check its usage before connecting to it.

Finally, choose the right VPN protocol. Connections tend to be more stable when you are using a TCP protocol instead of UDP. While TCP is slower, UDP is faster but error-prone

How to Avoid a VPN Disconnection?

Since you know why a VPN disconnects, there are ways to avoid it. Well, if your internet connection is slow, you’d probably need a new router or to change your internet service provider.

What I can advise you to do is to always check your internet speed with our tool.

However, as I said before, the internet connection is an unpredictable thing. You can’t control it. But the thing you can control is your decision to choose your VPN service.

VPN kill switch: VPN services

Once you’ve made the right decision to get a VPN, you’ll never have to worry about disconnecting from the internet again. Even if it happens, all your personal information is going to be safe. All your sent and received files are not going to be exposed.

But here you have to be careful - not every VPN provider offers you a kill switch option.

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Which VPN Providers Offer Kill Switches?

Of course, I am here offering you only the best of the best.

Let’s start with NordVPN. According to our in-depth guide about it, NordVPN has the reputation of being one of the best in the VPN world. They not only offer you a kill switch feature on desktop and mobile devices but also many servers to choose from and a variety of prices, starting at $2,99/mo on a three-year plan.

They also offer you top-notch security and data protection. What else could you look for? Bargain!


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Table: NordVPN, ExpressVPN, and CyberGhost comparison.

However, there are strong competitors. As we have said in our review, ExpressVPN offers you incredible server speed if you want things to flow very smoothly. Their kill switch feature is called Network Lock and, unlike on competitors' apps, is enabled as soon as you download the software! 

ExpressVPN prices are a bit more pricey, though. A one-year subscription will cost you $8,32/mo, but you can ask for a refund within the first month if you don’t fancy it.

Private Internet Access or PIA is also one of the top VPN providers out there. This kill switch VPN provider not only offers you data protection but also an inbuilt DNS leak protection and adopts a no-log policy.

Our review found that PIA is an ever-growing VPN provider and its quality isn’t far off the top dogs. With pricing they go hand in hand as well - you can get PIA for two years for $3,49/mo!

VPN kill switch: VPN worldwide

Finally, Cyberghost. Probably one of the better prices in the market out there, Cyberghost offers you their kill switch feature and more just for $2,75/mo on a three-year period!

During years of hard work, CyberGhost established a strict no-logs policy, an unbelievable server speed that only slows down your natural internet speed by 10Mbs and military-grade 256-bit AES encryption!

If you still haven’t decided on which VPN provider to choose, you can check out our comparison tool, which presents you with all the features a particular VPN provider has.


Since I’ve answered “what is VPN kill switch?” and “how does a kill switch work?”, it’s your time to make a wise move. Having a VPN is already a wise move. Having a VPN with a kill switch is even wiser.

If you have a slow internet connection while using a VPN or worry about being exposed while using untrusted public WiFi, a VPN kill switch is your go tool.

While there are many great options to choose from, you can check our ranking of the best VPNs out there, and choose the right one for your needs!

Leave your honest feedback

By leaving your honest opinion you can help thousands of readers to choose the best VPN. We accept genuine & helpful user feedback, either positive or negative. Have in mind that biased feedback will not be published. If you want to share your opinion, experience or advice, we want you to spill the beans!

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Recent User Reviews


from what I heard usually killswitches are known to fail and TBH a firewall is better.


You can easily use a firewall as your kill switch!


I don't want my identity being compromised and Im reading everything I need from a VPN to be safe

Zero Issues

Using nordvpn's killswitch and never had any issues with it. Keeps me safe everytime :D

safe haven :D

A VPN is basically a safe haven for online browsing and a Killswitch, well you already know what it's.. ;)

Good Info

I was wondering what a killswitch was... Thanks top50vpn!

Just so you know :)

Here's my two cents, with NordVPN, on mac you have to specify the specific apps you want to be affected by the kill switch. :)


Hehe, I never had a chance to use my killswitch :( Is that a good thing?

Accidents happen

I killed all my apps on my phone and now I think I was exposed would turning on my VPN would work and hide my activity again?

firewalls are better

Personally, I think that a firewall does a better job on keeping you safe in case of a sudden disconnection.


If I grant permissions to the software to turn down my internet who knows what else can do in my computer! I dont trust

Always ON

Normally I have a slow connection when using Cyber Ghost, that's why I've turned on my killswitch :)

NO dosh, NO problem!

A poor man's kill switch would be qBittorrent, highly recommended if you're almost out of dosh.


Is this reliable on mobiles or just desktop I find it hard o believe it would shut down my mobile's internet.

all in one vpn

for what i have been reading better to have a vpn that has it all, dns leak protection, hide ip, no logs AND the kill swith


Even since I was starting to torrent I knew a kill switch was basic! The bad thing is that a lot of vpns dont add this feature, which is annoying since they are expensive

Excellent feature

I have an application called vpn lifeguard and it helps protect my apps, no need to pay more for this feature!


Wasn't that important at the beginning but after reading your reviews I know for sure its super important to have a internet kill switch!


If VPN application is well made, you can always rely on KillSwitch.

Drained battery

My only complain is that the VPN working 24/7 really drains my battery, it's a pity.

How does this work?

I would love to see a video of a VPN that stops working and the kill switch on action! It just sounds extrely complex

Lucky ! ! !

Lucky me I never had any sudden disconnections, either way I always keep my killswitch ON.


I want the best VPN and not even once I thought about a kill switch, sounds like every VPN should have it

Buy best VPN's

If you don't want to experience any issues whatsoever better but suscriptions to the best VPNs of the market.


Good to know what makes a VPN superior from the rest, I will surely feel more safe with a kill switch in the plan

Not Worth it for me

I don't really think a killswitch is worth it, at least in my case, I only use a VPN for NETFLIX.


She told me to turn off my killswitch for the night, what a bummer! :sadface:

Fantastic feature!

A KillSwitch is a great feature tbh. You want safety, there you go!

Are you poor?

Do you guys have poor connections? Why would you need a KS if you never suffer from sudden disconnections? Pointless!

Can they fail?

A lot of people complain about kill switches, do these tools actually work and how to know they do work?

Was disabled!

My advice to you people is to check if your kill switch is enabled, I paid extra I think for a service with a kill switch and just notice it was disabled.

My data

I don't trust a kill switch. VPN goes off and sends information to my device? No thank you, sounds fishy.

Really worth it ! !

Sometimes my connection drops which is a bad thing for me due to the highly sensitive info I handle. Gladly ExpressVPN's killswitch saves my ass whenever I need to.

Can't believe it!

I have been using a proxy for a while now and I had no idea my IP is showing everytime I close it, switching to a VPN now!

Works on iPhone!

Hello, I'm wondering if a kill switch will also work on my iphone, as it disconnects the phone completely off internet.

Any killswitch is GOOD

ExpressVPN, Nord, and even PIA killswitches are good to have in case of trouble.

Running all the time

The thing that I don't like is the fact that the kill swith is running all day and slowing down my system.


My main goal is to remain completely anonymous from the goverment or any organization online, this information is key I appreciate it.


I'm using ExpressVPN and the kill switch works great on Windows! No complains!


awesome article and really helpful info. Thanks for sharing!


What is a VPN kill switch?

A kill switch is a VPN feature that turns on straight after your lose your connection to a VPN server. It disconnects your device from the internet until the connection is restored so your personal data and location don't get exposed. A VPN kill switch feature monitors your connection to a VPN provider’s servers and it instantly sees and detects if any changes to your connection happen. Most of the top VPN providers offer this kill switch feature.

Does every VPN provider offer a kill switch feature?

No, every VPN provider does not offer you a kill switch feature, which is crucial for your safety surfing the internet. That means once you disconnect from the VPN server, your information could be easily exposed online. However, most of the top VPN providers out there, such as NordVPN, ExpressVPN and CyberGhost will have a kill switch feature at their disposal.

How do you decide which provider offers the best VPN?

Deciding which provider has the top VPN is not an easy task, but it sure is fun! We have a dedicated team of professionals who test each VPN from start to finish, measuring all of the most important features. We buy all the VPNs ourselves, use machine learning & data science algorithms, get opinions from hundreds of real users, MIT professors, internet security experts and more. The top VPN services are decided by measuring all these important metrics, and never by the request of the providers.

Is VPN legal & safe?

VPNs are totally legal, well, at least in 97% of the world. Some countries only allow government-approved VPNs, like: China, Iran, Oman, Russia, Turkey & United Arab Emirates.
Nonetheless, it’s completely legal in most countries. Usually, top VPN providers are really safe too, but to make sure, look for the information logging & DNS leak topics in our best VPN reviews. If the provider of your interest logs your personal data & doesn’t pass the DNS leakage test, you should look for a more safer VPN.

What are the benefits of using a VPN?

What top VPNs do is mask your real IP address to hide your current location. If the VPN has great quality, it won’t leak or log your personal information. You can freely roam around the internet not having to worry about the exposure of your privacy and information. Also, you can access geo-blocked content on Netflix, or other censored types of information. A VPN can also give you an extra layer of safety for Peer-to-Peer sharing function while using torrents. Every VPN has different pros and cons, so be sure to check them in our in-depth best VPN reviews.

Can VPNs be used to unblock content?

Yes, it can. The most popular content platform for top VPNs to unblock is Netflix. Even though it’s available almost everywhere, USA users have a much bigger content variety. That’s why a lot of people use VPNs to view that kind of content via USA-located servers. If the content you want to view is geo-blocked, you can look up which servers (in which regions) the top VPN providers possess and which ones are right for you. You can easily find this information for each best VPN service in our VPN reviews.