VPN: What is it and what is it for?

VPN: What is it and what is it for?

If you need to use services that are blocked in your region, a VPN can help you!

The acronym VPN (Virtual Private Network), translated into Portuguese as “Virtual Private Network“, A tool that guarantees the personal information securitybut unfortunately a large part of the population does not know or do not know exactly how it works. A VPN serves to establish a private network connection supposedly reliable between two (or more) points, over an unreliable public network (like the phone company package you subscribe to) at a low operating cost.

It is known that the internet is a public network considered insecure, since all information is subject to interception. Therefore, the VPN appears to provide security and allow the interconnection of a company's local networks, for example, in different geographic regions. So the public network itself would be necessary to make the connection, but now with VPN the channel is even more secure.

In addition to remote access, VPN also protects and encrypts your communication with the internet on public networks that are not reliable, such as networks Airport Wi-Fi. That is, basically, it allows access to resources on a local network, even if you are not physically connected to that network. Thus, there is a guarantee of protection during the exchange of information over the public internet. And if you already want a VPN suggestion to use, this service can be one of the main ways to have secure and fast access on the internet.

What encryption?

Email encryption: The ultimate guide to send an encrypted email in ...With encryption, your information needs a key to be understood (Reproduction; Tutanota)

Encryption works as a form of “secret code”. Your data is scrambled and seen a cipher. So there's a key that allows you to decipher this message so that it makes sense again. If you want more security when exchanging personal information (like credit cards and social network passwords), through encryption that the data becomes secret and safe for the user.

To make it difficult for someone trying to intercept the message, these keys have 256 bits (basically 256 numbers) that are used as a reference in the original message to decode it. Of course, this whole process cannot be seen so easily with our own eyes, but it is important to know that it exists and that it makes your private network even more secure.

How to use a VPN?

To connect to a secure network, you need to access the internet in the conventional way and then start a connection with the VPN server, using specific software. In the case of a company, just connect to the server to access the company's internal network and all files, for example.

The best VPN services have a balance between their resources, the location of the servers, connection protocols and, of course, their low cost. Some are great for occasional use, while others are designed to circumvent location restrictions that some companies apply, such as international streaming services. We have already mentioned how you can access catalogs of films that are blocked in your country. There are also those aimed at people who love to download and want a little privacy while downloading their files.

VPN The Office NetflixInternational catalogs of streaming services can be accessed here in Brazil (Reproduction)

Speaking a little more about location restrictions, it is worth remembering that a VPN can also be useful to free up access to blocked functions in your region. For example, one of the most popular uses is to enable access to Netflix catalog from other countries; in Brazil, most of its users do so to watch films and series are available in the United States. For those who enjoy privacy when browsing, VPN keeps your communications secure and encrypted, away from prying eyes, whether at home or on a trip.

There are private network services paid, offering a series of essential tools and services, robust enough to guarantee the confidentiality of data and IP numbers outside of blacklists. It's a VPN free it is not totally free of charge, although its protection is satisfactory in most cases. Although many of them do not cover anything, we recommend you to be aware, as most of these services usually collect data user's browsing experience, profiting by sending this information to third parties.

You already have a subscription to VPN? What do you usually use? Tell us in the comments!