Hey guys, we all hear about what a VPN is and what it does. But how does it actually work technically? How does it hide our data on the internet? And in what situations should we use it? What should we be careful about? My questions are piling up, what are your thoughts?
What is a VPN and how does it work?
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You can think of a VPN as a tunnel system. For example, instead of waiting for the elevator to go home, imagine entering a private corridor and going directly to the basement. Normally, your internet traffic travels through open roads and can be seen by everyone—just like everyone can see you when you leave the apartment building. A VPN routes this traffic through an encrypted tunnel, so the data is only visible to you and the VPN server.
Just like when you enter your credit card PIN at a shopping mall, a VPN encrypts your connection. However, you should be careful when choosing a VPN—make sure to use a reliable provider. Free ones may sometimes sell your data to third parties—just like a cheap jewelry seller might sell counterfeit goods. For the security of your personal data, investing in a quality VPN is the smarter choice.