Why free VPN is very dangerous.

In the eyes of many, VPN is a means to visit sites that are, for whatever reason, denied access. Of course, you don’t really want to pay for the fight against incomprehensible restrictions … But do you lose more by trusting a free VPN?
How does it work?

VPN (Virtual Private Network) is a virtual private network. Initially, VPN technology was created for companies that needed to provide employees with secure access to their electronic resources. At the same time, employees could be anywhere – in the office, in another country, etc.

Today, VPN has gone beyond corporate use. These are networks that run over the Internet. Of course, you connect to a VPN via the Internet: you need to know the server’s address, and sometimes you also need a login and password to log in. But the VPN itself already connects to the sites you need and gives you traffic from there.
Using VPN, you connect to web resources through an intermediary. Since there are no restrictions for IP intermediaries, they are also removed for you.

Typically, a VPN server rises on a server in a data center or servers in different countries of the world, programmatically combined into one system. And on the user’s computer a client is installed, which is needed for connection and comfortable work. The client can be a special application, a browser extension, etc.
When you connect to a VPN, a special tunnel is formed – an encrypted communication channel.
Typically, the VPN connection between the client and the server is encrypted. Encrypted data is transferred to the provider, and then to the VPN server. For postback, the same algorithm is used. This allows, for example, to hide your traffic from the provider or from people who can analyze it.

But not everything is so cloudless. For example, no one will give a guarantee that the service does not have the keys to decrypt your traffic.

 

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