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What is VPN? How It Works, Types of VPN

A VPN, which stands for virtual private network, establishes a digital connection between your computer and a remote server owned by a VPN provider.

3 min read

In This Article
  1. How does a work?
  2. What are the benefits of a VPN connection?
  3. Here’s how to surf securely with a VPN

How does a VPN work?

A VPN hides your IP address by letting the network redirect it through a specially configured remote server run by a VPN host. This means that if you surf online with a VPN, the VPN server becomes the source of your data. This means your Internet Service Provider (ISP) and other third parties cannot see which websites you visit or what data you send and receive online. A VPN works like a filter that turns all your data into "gibberish". Even if someone were to get their hands on your data, it would be useless.

What are the benefits of a VPN connection?

A VPN connection disguises your data traffic online and protects it from external access. Unencrypted data can be viewed by anyone who has network access and wants to see it. With a VPN, hackers and cyber criminals can’t decipher this data.

Secure encryption: To read the data, you need an encryption key . Without one, it would take millions of years for a computer to decipher the code in the event of a brute force attack . With the help of a VPN, your online activities are hidden even on public networks.

Disguising your whereabouts: VPN servers essentially act as your proxies on the internet. Because the demographic location data comes from a server in another country, your actual location cannot be determined. In addition, most VPN services do not store logs of your activities. Some providers, on the other hand, record your behavior, but do not pass this information on to third parties. This means that any potential record of your user behavior remains permanently hidden.

Access to regional content: Regional web content is not always accessible from everywhere. Services and websites often contain content that can only be accessed from certain parts of the world. Standard connections use local servers in the country to determine your location. This means that you cannot access content at home while traveling, and you cannot access international content from home. With VPN location spoofing , you can switch to a server to another country and effectively “change” your location.

Secure data transfer: If you work remotely, you may need to access important files on your company’s network. For security reasons, this kind of information requires a secure connection. To gain access to the network, a VPN connection is often required. VPN services connect to private servers and use encryption methods to reduce the risk of data leakage.

Here’s how to surf securely with a VPN

A VPN encrypts your surfing behavior, which can only be decoded with the help of a key. Only your computer and the VPN know this key, so your ISP cannot recognize where you are surfing. Different VPNs use different encryption processes, but generally function in three steps:

  • Once you are online, start your VPN. The VPN acts as a secure tunnel between you and the internet. Your ISP and other third parties cannot detect this tunnel.
  • Your device is now on the local network of the VPN, and your IP address can be changed to an IP address provided by the VPN server.
  • You can now surf the internet at will, as the VPN protects all your personal data.
Why should I pay for a VPN service?

A free VPN, at best, will only be able to provide you with limited bandwidth, a small number of servers, or low speeds. Additionally, VPN servers are expensive to maintain, so any provider with a free version has to make up the loss elsewhere.

While a good VPN won’t store logs or track data, a free VPN service has to make money to stay in business. Some providers may opt to collect and sell data, since you’re routing all of your traffic through their services. Good VPNs that have paid plans won’t have to resort to such actions.

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