{"id":269524,"date":"2023-05-15T08:25:47","date_gmt":"2023-05-15T05:25:47","guid":{"rendered":"https:\/\/freevpnplanet.com\/blog\/what-is-a-vpn-and-what-does-it-do\/"},"modified":"2026-06-06T20:04:03","modified_gmt":"2026-06-06T17:04:03","slug":"what-is-a-vpn-and-what-does-it-do","status":"publish","type":"post","link":"https:\/\/freevpnplanet.com\/fr\/blog\/what-is-a-vpn-and-what-does-it-do\/","title":{"rendered":"What Is a VPN and What Does It Do?"},"content":{"rendered":"\n<p class=\"\">Chaque fois que vous vous connectez \u00e0 Internet, vous laissez une trace \u2014 votre adresse IP, votre activit\u00e9 de navigation et vos donn\u00e9es personnelles sont toutes visibles par votre fournisseur d&#8217;acc\u00e8s \u00e0 Internet, les annonceurs et toute autre personne positionn\u00e9e pour intercepter votre trafic. Un VPN, ou Virtual Private Network, est l&#8217;outil le plus largement utilis\u00e9 pour changer cela.<\/p>\n\n<p class=\"\">Il chiffre votre connexion, masque votre v\u00e9ritable adresse IP et achemine votre trafic internet via un serveur s\u00e9curis\u00e9, gardant ainsi votre activit\u00e9 en ligne priv\u00e9e vis-\u00e0-vis des observateurs ext\u00e9rieurs. Ce guide explique ce qu&#8217;est un VPN, comment il fonctionne et comment choisir le bon.<\/p>\n\n<h2 class=\"wp-block-heading\">D\u00e9finir un VPN<\/h2>\n\n<p class=\"\">VPN signifie Virtual Private Network \u2014 une technologie qui cr\u00e9e une connexion s\u00e9curis\u00e9e et crypt\u00e9e entre votre appareil et l&#8217;internet. \u00c0 la base, un VPN est un r\u00e9seau priv\u00e9 qui achemine votre trafic via un serveur distant, masquant votre adresse IP r\u00e9elle et prot\u00e9geant vos donn\u00e9es sensibles de toute personne susceptible de regarder.<\/p>\n\n<p class=\"\">La signification du VPN est assez simple une fois que l&#8217;on d\u00e9compose le nom. \u00ab Virtual \u00bb parce qu&#8217;il cr\u00e9e une connexion priv\u00e9e simul\u00e9e sur un r\u00e9seau public. \u00ab Private \u00bb parce que votre activit\u00e9 est crypt\u00e9e et cach\u00e9e des observateurs ext\u00e9rieurs. \u00ab Network \u00bb parce qu&#8217;il connecte plusieurs points \u2014 votre appareil, le serveur VPN et l&#8217;internet au sens large \u2014 comme s&#8217;ils faisaient tous partie du m\u00eame syst\u00e8me s\u00e9curis\u00e9.<\/p>\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-2-20230515_052423_564585.jpg\" alt=\"D&#xE9;finir un VPN\" class=\"wp-image-67393\" title=\"D&#xE9;finir un VPN\" srcset=\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-2-20230515_052423_564585.jpg 640w, https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-2-20230515_052423_564585-300x169.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n<p class=\"\"><\/p>\n\n<h2 class=\"wp-block-heading\"><span id=\"Understanding_VPN_A_Complete_Overview\">Comprendre le VPN : un aper\u00e7u complet<\/span><\/h2>\n\n<p class=\"\">Un VPN \u00e9tablit un passage prot\u00e9g\u00e9 entre votre appareil et le serveur VPN. Lorsque vous vous connectez, tout votre trafic internet passe par ce tunnel chiffr\u00e9 avant d&#8217;atteindre sa destination. Pour toute personne observant votre connexion de l&#8217;ext\u00e9rieur \u2014 votre fournisseur d&#8217;acc\u00e8s internet, un hacker sur le m\u00eame r\u00e9seau Wi-Fi public ou un programme de surveillance gouvernemental \u2014 votre trafic appara\u00eet comme des donn\u00e9es chiffr\u00e9es illisibles provenant de l&#8217;adresse IP du serveur VPN plut\u00f4t que de la v\u00f4tre.<\/p>\n\n<p class=\"\">C&#8217;est fondamentalement diff\u00e9rent du simple fait de naviguer sur le web sans protection. Sans VPN, votre ISP peut voir chaque site web que vous visitez, chaque fichier que vous t\u00e9l\u00e9chargez et chaque message que vous envoyez via des canaux non chiffr\u00e9s. Votre historique de navigation devient un registre accessible \u00e0 votre fournisseur d&#8217;acc\u00e8s internet, aux annonceurs et potentiellement aux forces de l&#8217;ordre. Une connexion VPN change enti\u00e8rement cette dynamique.<\/p>\n\n<p class=\"\">La technologie VPN moderne a consid\u00e9rablement \u00e9volu\u00e9. Les premiers VPN \u00e9taient principalement des outils d&#8217;entreprise con\u00e7us pour l&#8217;acc\u00e8s aux r\u00e9seaux corporatifs. Aujourd&#8217;hui, le march\u00e9 du VPN personnel s&#8217;adresse \u00e0 des millions de personnes qui utilisent des VPN pour prot\u00e9ger leur vie priv\u00e9e, acc\u00e9der \u00e0 du contenu et s\u00e9curiser leurs connexions en d\u00e9placement. Les progr\u00e8s de la technologie VPN ont rendu ces outils plus rapides, plus faciles \u00e0 utiliser et plus largement disponibles que jamais auparavant.<\/p>\n\n<h2 class=\"wp-block-heading\"><span id=\"How_VPN_Works_Simplifying_the_Complexities\">Comment fonctionnent les services VPN<\/span><\/h2>\n\n<p class=\"\">Lorsque vous lancez une application VPN et que vous vous connectez \u00e0 un serveur, votre appareil et le serveur VPN effectuent un handshake \u2014 \u00e9changeant des cl\u00e9s cryptographiques qui seront utilis\u00e9es pour chiffrer et d\u00e9chiffrer votre trafic. Ce processus cr\u00e9e le tunnel chiffr\u00e9 \u00e0 travers lequel tout votre trafic internet circulera.<\/p>\n\n<p class=\"\">Vos donn\u00e9es sont chiffr\u00e9es sur votre appareil avant d&#8217;\u00eatre transmises. Elles transitent par le tunnel VPN jusqu&#8217;au serveur distant, o\u00f9 elles sont d\u00e9chiffr\u00e9es et envoy\u00e9es vers leur destination \u2014 un site web, le backend d&#8217;une application, un service de streaming. La r\u00e9ponse suit le m\u00eame chemin en sens inverse : chiffr\u00e9e par le serveur, transmise par le tunnel, et d\u00e9chiffr\u00e9e sur votre appareil.<\/p>\n\n<p class=\"\">Du point de vue de tout site web que vous visitez, la connexion semble provenir de l&#8217;adresse IP du serveur VPN, et non de la v\u00f4tre. Votre ISP peut voir que vous \u00eates connect\u00e9 \u00e0 un serveur VPN, mais ne peut pas voir ce que vous faites au sein de cette connexion crypt\u00e9e. Le trafic internet qui circule via le VPN appara\u00eet comme des donn\u00e9es crypt\u00e9es d\u00e9nu\u00e9es de sens pour quiconque tente de l&#8217;intercepter.<\/p>\n\n<p class=\"\">Le client VPN de votre appareil g\u00e8re tout cela automatiquement. Vous vous connectez et, \u00e0 partir de ce moment, votre connexion est s\u00e9curis\u00e9e. Le logiciel VPN est aujourd&#8217;hui con\u00e7u pour \u00eatre simple et accessible, m\u00eame pour les utilisateurs n&#8217;ayant aucune formation technique.<\/p>\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-1-1-20230515_052444_060148.jpg\" alt=\"L'importance du VPN dans le monde num&#xE9;rique d'aujourd'hui\" class=\"wp-image-67400\" title=\"L'importance du VPN dans le monde num&#xE9;rique d'aujourd'hui\" srcset=\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-1-1-20230515_052444_060148.jpg 640w, https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-1-1-20230515_052444_060148-300x169.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n<p class=\"\"><\/p>\n\n<h2 class=\"wp-block-heading\"><span id=\"Benefits_of_VPN_Security_Anonymity_and_More\">Avantages du VPN : S\u00e9curit\u00e9, Anonymat, et plus<\/span><\/h2>\n\n<p class=\"\">Les VPN apportent de la valeur sur plusieurs dimensions simultan\u00e9ment. L&#8217;avantage le plus largement compris est la s\u00e9curit\u00e9 \u2014 plus pr\u00e9cis\u00e9ment la <a href=\"https:\/\/freevpnplanet.com\/fr\/blog\/what-is-vpn-encryption\/\">protection de vos donn\u00e9es gr\u00e2ce au chiffrement.<\/a> Lorsque vous vous connectez \u00e0 un VPN, votre trafic internet est chiffr\u00e9 \u00e0 l&#8217;aide d&#8217;algorithmes robustes qu&#8217;il faudrait un temps impraticable aux ordinateurs modernes pour d\u00e9chiffrer. Ces donn\u00e9es chiffr\u00e9es sont essentiellement illisibles pour quiconque les intercepte en transit.<\/p>\n\n<p class=\"\">L&#8217;anonymat est \u00e9troitement li\u00e9. Un VPN masque votre v\u00e9ritable adresse IP, la rempla\u00e7ant par l&#8217;adresse IP du serveur VPN. Cela emp\u00eache les sites web, les annonceurs et d&#8217;autres tiers d&#8217;utiliser votre adresse IP pour vous identifier ou vous suivre. Bien qu&#8217;aucun VPN ne vous rende totalement anonyme \u2014 d&#8217;autres m\u00e9thodes de suivi bas\u00e9es sur le navigateur existent toujours \u2014 cela place la barre nettement plus haut pour quiconque tente de profiler votre comportement en ligne.<\/p>\n\n<p class=\"\">Les VPN permettent \u00e9galement une flexibilit\u00e9 g\u00e9ographique. Comme votre connexion semble provenir de l&#8217;emplacement du serveur VPN, vous pouvez acc\u00e9der \u00e0 du contenu restreint dans votre emplacement r\u00e9el. Ceci est particuli\u00e8rement utile pour les voyageurs qui souhaitent acc\u00e9der \u00e0 des services de leur pays d&#8217;origine, ou pour toute personne recherchant une gamme plus large d&#8217;options de contenu.<\/p>\n\n<p class=\"\">Pour les travailleurs \u00e0 distance, un VPN offre un acc\u00e8s s\u00e9curis\u00e9 aux r\u00e9seaux du bureau et aux ressources de l&#8217;entreprise. Un remote-access VPN cr\u00e9e un canal s\u00e9curis\u00e9 entre l&#8217;appareil d&#8217;un employ\u00e9 \u00e0 distance et le r\u00e9seau de l&#8217;entreprise, comme s&#8217;il \u00e9tait physiquement assis au bureau.<\/p>\n\n<p class=\"\">L&#8217;utilisation de services VPN sur les r\u00e9seaux Wi-Fi publics est l&#8217;un des cas d&#8217;utilisation les plus pratiques. La connexion crypt\u00e9e fournie par un VPN rend beaucoup plus difficile pour les attaquants sur le m\u00eame r\u00e9seau d&#8217;intercepter vos donn\u00e9es, m\u00eame si le r\u00e9seau lui-m\u00eame n&#8217;est pas s\u00e9curis\u00e9.<\/p>\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-2-1-20230515_052503_024561.jpg\" alt=\"Avantages du VPN : S&#xE9;curit&#xE9;, Anonymat, et plus\" class=\"wp-image-67407\" title=\"Avantages du VPN : S&#xE9;curit&#xE9;, Anonymat, et plus\" srcset=\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-2-1-20230515_052503_024561.jpg 640w, https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-2-1-20230515_052503_024561-300x169.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n<p class=\"\"><\/p>\n\n<h2 class=\"wp-block-heading\"><span id=\"Common_VPN_Use_Cases_From_Streaming_to_Gaming\">Cas d&#8217;utilisation courants du VPN<\/span><\/h2>\n\n<p class=\"\">Les VPN servent \u00e0 un large \u00e9ventail d&#8217;objectifs personnels et professionnels. Voici les raisons les plus courantes pour lesquelles les gens les utilisent :<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Travail \u00e0 distance : Les employ\u00e9s travaillant \u00e0 distance utilisent des VPN pour acc\u00e9der en toute s\u00e9curit\u00e9 aux r\u00e9seaux d&#8217;entreprise, aux fichiers et aux outils via l&#8217;internet public \u2014 comme s&#8217;ils \u00e9taient physiquement au bureau.<\/li>\n\n\n\n<li>S\u00e9curit\u00e9 du Wi-Fi public : Un VPN prot\u00e8ge vos donn\u00e9es des autres utilisateurs sur le m\u00eame r\u00e9seau, que vous consultiez vos e-mails \u00e0 l&#8217;a\u00e9roport ou que vous fassiez vos op\u00e9rations bancaires dans un h\u00f4tel.<\/li>\n\n\n\n<li>Confidentialit\u00e9 du ISP : Un VPN limite ce que votre fournisseur d&#8217;acc\u00e8s \u00e0 internet peut observer, l&#8217;emp\u00eachant de surveiller ou de vendre votre historique de navigation.<\/li>\n\n\n\n<li>\u00c9viter les g\u00e9o-restrictions : les voyageurs utilisent des VPN pour acc\u00e9der aux services de streaming, aux sites d&#8217;actualit\u00e9s et aux plateformes qui sont g\u00e9o-restreints ou censur\u00e9s dans le pays qu&#8217;ils visitent.<\/li>\n\n\n\n<li>R\u00e9seautage d&#8217;entreprise : les entreprises utilisent des VPN site-to-site pour relier de mani\u00e8re s\u00e9curis\u00e9e des bureaux situ\u00e9s dans diff\u00e9rents endroits, partageant des ressources sans acheminer de donn\u00e9es sensibles via l&#8217;Internet ouvert.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\"><span id=\"Choosing_the_Right_VPN_Tips_and_Considerations\">Comment choisir le meilleur fournisseur de VPN<\/span><\/h2>\n\n<p class=\"\">Choisir un VPN signifie choisir une entreprise pour g\u00e9rer la s\u00e9curit\u00e9 et la confidentialit\u00e9 de votre trafic internet \u2014 la d\u00e9cision m\u00e9rite donc une r\u00e9flexion approfondie. Voici ce qu&#8217;il faut rechercher :<\/p>\n\n<ul class=\"wp-block-list\">\n<li>Chiffrement robuste et protocoles modernes : recherchez la prise en charge de WireGuard et OpenVPN. Les deux sont bien audit\u00e9s et fiables ; \u00e9vitez les fournisseurs qui s&#8217;appuient sur des protocoles obsol\u00e8tes comme le PPTP.<\/li>\n\n\n\n<li>Une politique d&#8217;absence de journaux (no-logs policy) v\u00e9rifi\u00e9e : le fournisseur ne doit pas enregistrer votre adresse IP, votre activit\u00e9 de navigation ou vos horodatages de connexion \u2014 id\u00e9alement confirm\u00e9e par un audit ind\u00e9pendant r\u00e9alis\u00e9 par un tiers.<\/li>\n\n\n\n<li>Juridiction favorable : Les fournisseurs dont le si\u00e8ge social se situe en dehors des principales alliances de partage de renseignements sont confront\u00e9s \u00e0 moins d&#8217;obligations l\u00e9gales de fournir les donn\u00e9es des utilisateurs.<\/li>\n\n\n\n<li>Un kill switch <a href=\"https:\/\/freevpnplanet.com\/fr\/blog\/vpn-kill-switch-what-is-it-how-to-check-its-working-properly\/\">: La <\/a>fonction Kill switch coupe votre connexion internet si le VPN s&#8217;interrompt, emp\u00eachant ainsi l&#8217;exposition de votre v\u00e9ritable adresse IP pendant l&#8217;intervalle de reconnexion.<\/li>\n\n\n\n<li>Adapt\u00e9 \u00e0 votre cas d&#8217;utilisation : Prenez en compte le nombre de serveurs, la vitesse, la prise en charge des appareils et la facilit\u00e9 d&#8217;utilisation. Un VPN s\u00e9curis\u00e9 que vous trouvez difficile \u00e0 utiliser est un VPN que vous n&#8217;utiliserez pas de mani\u00e8re coh\u00e9rente.<\/li>\n<\/ul>\n\n<h2 class=\"wp-block-heading\">Guide g\u00e9n\u00e9ral pour configurer un VPN<\/h2>\n\n<p class=\"\"><a href=\"https:\/\/freevpnplanet.com\/fr\/blog\/how-to-set-up-a-vpn-on-any-device\/\">La configuration d&#8217;un VPN <\/a>est plus simple que ce que la plupart des gens pensent. Voici un guide g\u00e9n\u00e9ral sur la fa\u00e7on de commencer.<\/p>\n\n<p class=\"\">Commencez par choisir un fournisseur de VPN qui r\u00e9pond \u00e0 vos besoins et souscrivez \u00e0 un forfait. La plupart des fournisseurs r\u00e9put\u00e9s proposent des applications pour toutes les plateformes majeures \u2014 Windows, macOS, iOS, Android et parfois Linux. T\u00e9l\u00e9chargez et installez l&#8217;application VPN pour votre appareil. C&#8217;est ainsi que vous installez un VPN sur la plupart des plateformes grand public ; l&#8217;application g\u00e8re toute la configuration automatiquement.<\/p>\n\n<p class=\"\">Une fois l&#8217;application install\u00e9e, ouvrez-la et connectez-vous avec vos identifiants. On vous pr\u00e9sentera g\u00e9n\u00e9ralement une liste de serveurs ou un bouton quick-connect qui s\u00e9lectionne automatiquement le meilleur serveur disponible. Choisissez un serveur dans l&#8217;emplacement de votre choix \u2014 votre pays d&#8217;origine si vous voyagez, ou simplement l&#8217;emplacement le plus proche pour une meilleure vitesse.<\/p>\n\n<p class=\"\">Cliquez sur se connecter. Le VPN \u00e9tablit une connexion chiffr\u00e9e avec le serveur et, \u00e0 partir de ce moment, votre trafic internet est achemin\u00e9 via le tunnel VPN. La plupart des applications affichent un indicateur clair montrant que la connexion VPN est active.<\/p>\n\n<p class=\"\">Pour vous d\u00e9connecter, ouvrez l&#8217;app et cliquez sur disconnect. Votre trafic passera ensuite normalement par votre connexion ISP habituelle.<\/p>\n\n<p class=\"\">Pour une utilisation continue, envisagez d&#8217;activer des fonctionnalit\u00e9s telles que le kill switch et l&#8217;auto-connect sur les r\u00e9seaux non approuv\u00e9s. Ces param\u00e8tres varient selon le VPN client, mais se trouvent g\u00e9n\u00e9ralement dans le menu des param\u00e8tres de l&#8217;application. Sur mobile, une application VPN fonctionne de la m\u00eame mani\u00e8re \u2014 connectez-vous avant d&#8217;utiliser le Wi-Fi public ou chaque fois que vous souhaitez la protection d&#8217;une VPN gateway.<\/p>\n\n<figure class=\"wp-block-image aligncenter\"><img decoding=\"async\" width=\"640\" height=\"360\" src=\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-3-1-20230515_052523_934251.jpg\" alt=\"Choisir le bon VPN : conseils et consid&#xE9;rations\" class=\"wp-image-67414\" title=\"Choisir le bon VPN : conseils et consid&#xE9;rations\" srcset=\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-3-1-20230515_052523_934251.jpg 640w, https:\/\/freevpnplanet.com\/wp-content\/uploads\/2023\/05\/rvpn-collage-style-3-1-20230515_052523_934251-300x169.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure>\n\n<h2 class=\"wp-block-heading\">Pourquoi choisir Planet VPN ?<\/h2>\n\n<p class=\"\"><a href=\"https:\/\/freevpnplanet.com\">Planet VPN <\/a>r\u00e9unit les qualit\u00e9s essentielles d&#8217;une solution VPN digne de confiance dans une offre accessible aux utilisateurs quotidiens. Une politique stricte de no-logs, la prise en charge des protocoles VPN modernes et des serveurs dans des dizaines de pays vous offrent \u00e0 la fois protection et flexibilit\u00e9. Le VPN masque votre v\u00e9ritable adresse IP, chiffre votre trafic internet et pr\u00e9serve la confidentialit\u00e9 de votre historique de navigation vis-\u00e0-vis de votre ISP et des tiers.<\/p>\n\n<p class=\"\">Que vous ayez besoin d&#8217;un VPN pour votre confidentialit\u00e9 quotidienne, pour le travail \u00e0 distance ou pour rester en s\u00e9curit\u00e9 sur les r\u00e9seaux Wi-Fi publics, Planet VPN offre les fonctionnalit\u00e9s qui comptent. L&#8217;application simple facilite l&#8217;utilisation du VPN sur tous vos appareils, tandis que la s\u00e9curit\u00e9 sous-jacente r\u00e9siste \u00e0 l&#8217;examen. Pour quiconque recherche un VPN fiable qui ne fait aucun compromis sur la confidentialit\u00e9, Planet VPN m\u00e9rite une attention s\u00e9rieuse.<\/p>\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n<h3 class=\"wp-block-heading\">Qu&#8217;est-ce qu&#8217;un VPN et pourquoi l&#8217;utiliser ?<\/h3>\n\n<p class=\"\">VPN signifie Virtual Private Network. C&#8217;est un service qui crypte votre connexion internet et l&#8217;achemine via un serveur distant, masquant votre v\u00e9ritable adresse IP et prot\u00e9geant vos donn\u00e9es des observateurs ext\u00e9rieurs.<\/p>\n\n<h3 class=\"wp-block-heading\">Comment obtenir un VPN ?<\/h3>\n\n<p class=\"\">Pour obtenir un VPN, choisissez un fournisseur, souscrivez \u00e0 un forfait et t\u00e9l\u00e9chargez leur application sur votre appareil. La plupart des services VPN proposent des applications pour toutes les plateformes majeures. Une fois que vous avez install\u00e9 une application VPN et que vous vous \u00eates connect\u00e9, vous pouvez vous connecter \u00e0 un serveur en un seul clic ou pression.<\/p>\n\n<h3 class=\"wp-block-heading\">Puis-je utiliser un VPN gratuitement ?<\/h3>\n\n<p class=\"\">Il existe des options de VPN gratuites, mais elles s\u2019accompagnent de limitations importantes. Les services de VPN gratuits limitent g\u00e9n\u00e9ralement l\u2019utilisation des donn\u00e9es, offrent moins d\u2019emplacements de serveurs et peuvent avoir des vitesses plus lentes. Plus important encore, certains VPN gratuits mon\u00e9tisent leurs services en enregistrant et en vendant les donn\u00e9es des utilisateurs \u2014 \u00e0 l&#8217;oppos\u00e9 de l&#8217;avantage de confidentialit\u00e9 que vous recherchez. Pour une utilisation r\u00e9guli\u00e8re et fiable d&#8217;un VPN, un VPN payant provenant d&#8217;un fournisseur r\u00e9put\u00e9 est g\u00e9n\u00e9ralement un meilleur choix.<\/p>\n\n<h3 class=\"wp-block-heading\">Comment activer un VPN ?<\/h3>\n\n<p class=\"\">Ouvrez votre application VPN, s\u00e9lectionnez un serveur ou utilisez l&#8217;option auto-connect, puis appuyez ou cliquez sur le bouton connect. L&#8217;application indiquera quand la connexion VPN est active. Pour la d\u00e9sactiver, ouvrez \u00e0 nouveau l&#8217;application et d\u00e9connectez-vous.<\/p>\n\n<h3 class=\"wp-block-heading\">Est-il l\u00e9gal d&#8217;utiliser un VPN ?<\/h3>\n\n<p class=\"\">Dans la plupart des pays, l&#8217;utilisation d&#8217;un VPN est tout \u00e0 fait l\u00e9gale. Les VPN sont largement utilis\u00e9s par les entreprises et les particuliers \u00e0 des fins l\u00e9gitimes de s\u00e9curit\u00e9 et de confidentialit\u00e9. Un petit nombre de pays restreignent ou interdisent l&#8217;utilisation des VPN, il est donc utile de v\u00e9rifier les r\u00e9glementations locales si vous voyagez.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Chaque fois que vous vous connectez \u00e0 Internet, vous laissez une trace \u2014 votre adresse IP, votre activit\u00e9 de navigation et vos donn\u00e9es personnelles sont toutes visibles par votre fournisseur d&#8217;acc\u00e8s \u00e0 Internet, les annonceurs et toute autre personne positionn\u00e9e pour intercepter votre trafic. Un VPN, ou Virtual Private Network, est l&#8217;outil le plus largement&#8230;<\/p>\n","protected":false},"author":72,"featured_media":67388,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[235],"tags":[],"class_list":["post-269524","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity-fr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Qu&#039;est-ce qu&#039;un VPN et \u00e0 quoi sert-il ? | Planet VPN<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez ce qu&#039;est un VPN, comment ce virtual private network chiffre vos donn\u00e9es, et ce que ces r\u00e9seaux priv\u00e9s font pour s\u00e9curiser votre activit\u00e9 en ligne.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/freevpnplanet.com\/fr\/blog\/what-is-a-vpn-and-what-does-it-do\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qu&#039;est-ce qu&#039;un VPN et \u00e0 quoi sert-il ? 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