The multiple facets of a VPN

Les Multiples Facettes D’un Vpn


Any navigation on the Internet leaves traces (history, information), which can be intercepted and used. A VPN, short for “Virtual Private Network”, is an application that creates a secure tunnel through which your data will travel, between your computer (or smartphone, tablet…) and the visited site. This way, your data is not scattered throughout the global network. In concrete terms, the VPN will encrypt your data in such a way that no one will be able to access it (from your access provider to the visited site).

WHAT IS A VPN (in video)?


In a large majority of countries, the use of a VPN is legal, but there are several cases where such solutions are subject to conditions or even prohibited. For example, in China, you must use VPNs accepted by the authorities and many providers are blocked by the Great Firewall. Other countries are stricter, such as the United Arab Emirates, where the use of a VPN is formally prohibited, as well as in Iraq, Turkey or the Sultanate of Oman, for example.



To secure a public Wifi network, such as in a café, a restaurant, a hotel, an airport… These open networks are easily accessible to hackers and consequently, your computer connected to these networks also becomes vulnerable to attacks.

Privacy Un Vpn


Keep your browsing data private (history, IP address of your device…).


Having access to services or websites that are not available in the country where you are located.

For example, I cannot access the Arte channel live from Switzerland 🇨🇭 or any other country outside Europe. Thanks to my VPN, I set my Internet connection virtually from France and I can watch Arte on my computer.


Different Vpn servicesAs a ProtonMail user, I chose ProtonVPN as my VPN client. However, you can choose between different potential clients: NordVPN, ExpressVPN…

ProtonVPN was born from the desire to secure the online privacy of journalists or activists located in countries that could not guarantee it. Not to mention these extreme cases, taking precautions to further secure our confidential data is a bit like taking care of your health: better safe than sorry, as the saying goes.

We sometimes forget that a huge part of Internet traffic takes place via smartphones (54.61% in April 2021). It is therefore also advisable to use a VPN on your smartphone, as this prevents your ISP (or mobile service provider) from monitoring your online activity or knowing the real IP address of your device.

If you have a Smart TV (TV connected to the Internet), you can also configure a VPN to ensure the privacy of your personal data. Because yes, just like any other connected technology, your Smart TV shares your data… It also allows you to access the content catalogs of streaming sites outside your country of connection.

Similarly, some VPN clients allow installation directly on your router.


A VPN is often paid, at least in a full version. For example, here are the rates of 3 of the best rated clients.

For your information, I indicate in brackets the country in which the service is legally attached (relevant data protection legislation).




On the open source side, there are also VPN clients, including WireGuard (new, but very promising – in server version) and OpenVPN (in server or cloud version). This requires very specific installations and settings and if you want, like me, a turnkey solution, prefer an application to install … simply.
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