{"id":267618,"date":"2026-05-14T19:34:35","date_gmt":"2026-05-14T16:34:35","guid":{"rendered":"https:\/\/freevpnplanet.com\/blog\/what-is-vpn-encryption\/"},"modified":"2026-06-08T01:29:27","modified_gmt":"2026-06-07T22:29:27","slug":"what-is-vpn-encryption","status":"publish","type":"post","link":"https:\/\/freevpnplanet.com\/fr\/blog\/what-is-vpn-encryption\/","title":{"rendered":"Qu&#8217;est-ce que le chiffrement VPN\u00a0?"},"content":{"rendered":"\n<p class=\"\">Lorsque vous vous connectez \u00e0 un VPN, vos donn\u00e9es ne font pas que transiter par un serveur diff\u00e9rent \u2014 elles sont envelopp\u00e9es dans une couche de protection qui les rend illisibles pour quiconque les intercepterait. C&#8217;est le chiffrement. Comprendre ce qu&#8217;est le chiffrement VPN vous aide \u00e0 faire des choix plus \u00e9clair\u00e9s sur le VPN \u00e0 utiliser et quand.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u00c0 quoi sert le chiffrement VPN ?<\/h2>\n\n\n\n<p class=\"\">Le chiffrement transforme vos donn\u00e9es en un format brouill\u00e9 que seul le destinataire pr\u00e9vu peut d\u00e9chiffrer. Sans lui, n&#8217;importe qui sur le m\u00eame r\u00e9seau \u2014 le Wi-Fi d&#8217;un caf\u00e9, un hotspot public ou m\u00eame votre fournisseur d&#8217;acc\u00e8s \u2014 peut voir ce que vous envoyez et recevez.<\/p>\n\n\n\n<p class=\"\">Un r\u00e9seau priv\u00e9 virtuel chiffre votre trafic internet avant qu&#8217;il ne quitte votre appareil. Il transite par un tunnel VPN s\u00e9curis\u00e9 jusqu&#8217;\u00e0 un serveur VPN, y est d\u00e9chiffr\u00e9, puis continue vers sa destination. R\u00e9sultat : votre activit\u00e9 de navigation, vos mots de passe et vos donn\u00e9es personnelles restent priv\u00e9s en transit.<\/p>\n\n\n\n<p class=\"\">Il ne s&#8217;agit pas de cacher quoi que ce soit de suspect. Il s&#8217;agit de garder vos informations pour vous \u2014 surtout sur des r\u00e9seaux que vous ne contr\u00f4lez pas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment fonctionne le chiffrement VPN ?<\/h2>\n\n\n\n<p class=\"\">Lorsque vous vous connectez \u00e0 un VPN, votre appareil et le serveur VPN effectuent une n\u00e9gociation (handshake). Durant ce processus, ils s&#8217;accordent sur la m\u00e9thode de chiffrement \u00e0 utiliser et \u00e9changent les cl\u00e9s n\u00e9cessaires pour verrouiller et d\u00e9verrouiller les donn\u00e9es.<\/p>\n\n\n\n<p class=\"\">\u00c0 partir de ce moment, chaque paquet de donn\u00e9es quittant votre appareil est chiffr\u00e9 avant d&#8217;\u00eatre envoy\u00e9. Le serveur VPN le d\u00e9chiffre, transmet la requ\u00eate au site web ou au service auquel vous acc\u00e9dez, et renvoie la r\u00e9ponse \u2014 \u00e0 nouveau chiffr\u00e9e \u2014 \u00e0 votre appareil.<\/p>\n\n\n\n<p class=\"\">L&#8217;ensemble du processus se d\u00e9roule en quelques millisecondes. Pour quiconque observe la connexion, il ne voit qu&#8217;un flux de donn\u00e9es illisibles.\n\nTrois composants essentiels permettent son fonctionnement&nbsp;:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Algorithmes de chiffrement \u2014 la m\u00e9thode utilis\u00e9e pour brouiller les donn\u00e9es<\/li>\n\n\n\n<li>Protocoles VPN \u2014 les r\u00e8gles r\u00e9gissant la mani\u00e8re dont les donn\u00e9es sont emball\u00e9es et transmises<\/li>\n\n\n\n<li>Cl\u00e9s de chiffrement \u2014 valeurs uniques qui verrouillent et d\u00e9verrouillent les donn\u00e9es chiffr\u00e9es<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Types d&#8217;algorithmes de chiffrement pour les VPN<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Chiffrement sym\u00e9trique (AES)<\/h3>\n\n\n\n<p class=\"\">Le chiffrement sym\u00e9trique utilise la m\u00eame cl\u00e9 pour chiffrer et d\u00e9chiffrer les donn\u00e9es. Votre appareil et le serveur VPN poss\u00e8dent tous deux une copie de cette cl\u00e9, convenue lors de la n\u00e9gociation initiale.<\/p>\n\n\n\n<p class=\"\">AES (Advanced Encryption Standard) est l&#8217;algorithme de chiffrement sym\u00e9trique le plus utilis\u00e9. Il existe en diff\u00e9rentes longueurs de cl\u00e9 \u2014 128 bits, 192 bits et 256 bits. AES-256 est le plus robuste et constitue le standard des services VPN r\u00e9put\u00e9s.<\/p>\n\n\n\n<p class=\"\">En pratique : AES-256 est suffisamment rapide pour une utilisation quotidienne et suffisamment s\u00fbr pour qu&#8217;une attaque par force brute prendrait plus de temps que l&#8217;\u00e2ge de l&#8217;univers. Il prot\u00e8ge votre canal de donn\u00e9es \u2014 le flux r\u00e9el de trafic entre vous et le serveur.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Chiffrement asym\u00e9trique (RSA)<\/h3>\n\n\n\n<p class=\"\">Le chiffrement asym\u00e9trique utilise deux cl\u00e9s math\u00e9matiquement li\u00e9es : une cl\u00e9 publique et une cl\u00e9 priv\u00e9e. N&#8217;importe qui peut chiffrer des donn\u00e9es avec la cl\u00e9 publique, mais seul le d\u00e9tenteur de la cl\u00e9 priv\u00e9e peut les d\u00e9chiffrer.<\/p>\n\n\n\n<p class=\"\">Les VPN utilisent RSA lors de la phase de n\u00e9gociation \u2014 avant que la cl\u00e9 de session sym\u00e9trique ne soit \u00e9tablie. C&#8217;est ainsi que votre appareil et le serveur \u00e9changent en toute s\u00e9curit\u00e9 cette cl\u00e9 initiale sans que quiconque puisse l&#8217;intercepter.<\/p>\n\n\n\n<p class=\"\">RSA-2048 est la norme courante. Certains fournisseurs utilisent RSA-4096 pour une s\u00e9curit\u00e9 suppl\u00e9mentaire, bien que la diff\u00e9rence de performances soit n\u00e9gligeable pour la plupart des utilisateurs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Hachage et int\u00e9grit\u00e9 des donn\u00e9es (SHA\/HMAC)<\/h3>\n\n\n\n<p class=\"\">Le hachage ne chiffre pas les donn\u00e9es \u2014 il v\u00e9rifie qu&#8217;elles n&#8217;ont pas \u00e9t\u00e9 alt\u00e9r\u00e9es.<\/p>\n\n\n\n<p class=\"\">Lorsque votre appareil envoie un paquet, un hachage (une empreinte de longueur fixe des donn\u00e9es) est g\u00e9n\u00e9r\u00e9 et joint. Le serveur g\u00e9n\u00e8re son propre hachage \u00e0 la r\u00e9ception et compare les deux. S&#8217;ils correspondent, les donn\u00e9es sont arriv\u00e9es intactes. Sinon, quelque chose a interf\u00e9r\u00e9.<\/p>\n\n\n\n<p class=\"\">SHA-256 et SHA-512 sont les algorithmes de hachage les plus fiables utilis\u00e9s aujourd&#8217;hui. HMAC (Hash-based Message Authentication Code) ajoute une couche suppl\u00e9mentaire en int\u00e9grant une cl\u00e9 secr\u00e8te dans le processus, rendant plus difficile pour un attaquant de forger un hachage valide.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comparaison des types de protocoles de chiffrement VPN<\/h2>\n\n\n\n<p class=\"\">Un protocole VPN d\u00e9termine la fa\u00e7on dont votre appareil se connecte au serveur VPN et dont les donn\u00e9es sont empaquet\u00e9es pendant la transmission. Les diff\u00e9rents protocoles font des compromis diff\u00e9rents entre vitesse, s\u00e9curit\u00e9 et compatibilit\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">OpenVPN<\/h3>\n\n\n\n<p class=\"\">OpenVPN est open-source et largement audit\u00e9 par les chercheurs en s\u00e9curit\u00e9. Il prend en charge le chiffrement AES-256 et fonctionne sur TCP et UDP. TCP est plus fiable pour les connexions instables ; UDP est plus rapide pour le streaming et les jeux.<\/p>\n\n\n\n<p class=\"\">Sa principale force est son bilan \u00e9prouv\u00e9. Des ann\u00e9es d&#8217;audits ind\u00e9pendants n&#8217;ont r\u00e9v\u00e9l\u00e9 aucune vuln\u00e9rabilit\u00e9 grave. Le compromis : ce n&#8217;est pas l&#8217;option la plus rapide et la configuration peut \u00eatre plus complexe sur certains appareils.<\/p>\n\n\n\n<p class=\"\"><strong>Id\u00e9al pour <\/strong>: les utilisateurs qui privil\u00e9gient la s\u00e9curit\u00e9 et la stabilit\u00e9 \u00e0 la vitesse brute.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">WireGuard<\/h3>\n\n\n\n<p class=\"\">WireGuard est un protocole plus r\u00e9cent construit sur une base de code bien plus l\u00e9g\u00e8re qu&#8217;OpenVPN \u2014 environ 4 000 lignes de code contre des centaines de milliers. Moins de code signifie moins d&#8217;endroits o\u00f9 les vuln\u00e9rabilit\u00e9s peuvent se cacher, et un audit plus facile.<\/p>\n\n\n\n<p class=\"\">Il utilise ChaCha20 pour le chiffrement, Curve25519 pour l&#8217;\u00e9change de cl\u00e9s, et BLAKE2s pour le hachage. Le r\u00e9sultat est un protocole rapide, moderne et s\u00e9curis\u00e9. Il fonctionne particuli\u00e8rement bien sur les appareils mobiles o\u00f9 les connexions basculent fr\u00e9quemment entre Wi-Fi et donn\u00e9es mobiles.<\/p>\n\n\n\n<p class=\"\"><strong>Id\u00e9al pour <\/strong>: les usages sensibles \u00e0 la vitesse \u2014 streaming, jeux, navigation quotidienne.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">IKEv2\/IPSec<\/h3>\n\n\n\n<p class=\"\">IKEv2 (Internet Key Exchange version 2) associ\u00e9 \u00e0 IPSec g\u00e8re \u00e0 la fois l&#8217;\u00e9change de cl\u00e9s et le chiffrement des donn\u00e9es en transit. Il excelle \u00e0 r\u00e9tablir rapidement les connexions \u2014 utile si votre appareil change de r\u00e9seau ou perd bri\u00e8vement le signal.<\/p>\n\n\n\n<p class=\"\">Il est pris en charge nativement sur iOS et de nombreux appareils professionnels, ce qui en fait un choix populaire pour les utilisateurs mobiles et les solutions VPN d&#8217;entreprise.<\/p>\n\n\n\n<p class=\"\"><strong>Id\u00e9al pour <\/strong>: les utilisateurs mobiles et ceux dont la connexion bascule fr\u00e9quemment entre r\u00e9seaux.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">L2TP\/IPSec<\/h3>\n\n\n\n<p class=\"\">L2TP (Layer 2 Tunneling Protocol) cr\u00e9e le tunnel mais ne chiffre pas les donn\u00e9es par lui-m\u00eame. Il s&#8217;appuie sur IPSec pour le chiffrement. La combinaison fonctionne, mais elle est plus lente que les alternatives modernes car les donn\u00e9es sont encapsul\u00e9es deux fois.<\/p>\n\n\n\n<p class=\"\">Il est \u00e9galement potentiellement vuln\u00e9rable \u00e0 certaines attaques s&#8217;il n&#8217;est pas correctement configur\u00e9. La plupart des fournisseurs VPN le prennent encore en charge pour des raisons de compatibilit\u00e9, mais ce n&#8217;est pas le premier choix quand de meilleures options sont disponibles.<\/p>\n\n\n\n<p class=\"\"><strong>Id\u00e9al pour : <\/strong>les appareils plus anciens ou les situations o\u00f9 WireGuard et OpenVPN ne sont pas pris en charge.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">SSTP<\/h3>\n\n\n\n<p class=\"\">SSTP (Secure Socket Tunneling Protocol) a \u00e9t\u00e9 d\u00e9velopp\u00e9 par Microsoft et s&#8217;int\u00e8gre \u00e9troitement \u00e0 Windows. Il utilise le chiffrement SSL\/TLS \u2014 le m\u00eame standard qui prot\u00e8ge le trafic web HTTPS \u2014 et peut traverser la plupart des pare-feux sans probl\u00e8me.<\/p>\n\n\n\n<p class=\"\">L&#8217;inconv\u00e9nient : il est en grande partie limit\u00e9 \u00e0 Windows, et sa nature \u00e0 code source ferm\u00e9 signifie qu&#8217;il n&#8217;a pas re\u00e7u le m\u00eame examen ind\u00e9pendant qu&#8217;OpenVPN ou WireGuard.<\/p>\n\n\n\n<p class=\"\"><strong>Id\u00e9al pour <\/strong>: les utilisateurs Windows dans des environnements r\u00e9seau restrictifs.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">PPTP (et pourquoi l&#8217;\u00e9viter)<\/h3>\n\n\n\n<p class=\"\">PPTP \u00e9tait l&#8217;un des tout premiers protocoles VPN. Il est rapide et largement pris en charge \u2014 mais ces avantages ont un co\u00fbt \u00e9lev\u00e9. Son chiffrement est obsol\u00e8te et pr\u00e9sente des vuln\u00e9rabilit\u00e9s connues. Des chercheurs en cybers\u00e9curit\u00e9 ont d\u00e9montr\u00e9 des attaques contre lui, dont certaines sont relativement simples \u00e0 ex\u00e9cuter.<\/p>\n\n\n\n<p class=\"\">Aucun fournisseur VPN s\u00e9rieux ne recommande PPTP pour quoi que ce soit n\u00e9cessitant une v\u00e9ritable confidentialit\u00e9. Si vous le voyez list\u00e9 comme seule option, cherchez ailleurs.<\/p>\n\n\n\n<p class=\"\"><strong>Id\u00e9al pour <\/strong>: rien qui implique des donn\u00e9es sensibles. \u00c9vitez-le.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Comment choisir un VPN avec un chiffrement robuste<\/h2>\n\n\n\n<p class=\"\">Tous les VPN ne chiffrent pas vos donn\u00e9es de la m\u00eame fa\u00e7on. Voici ce qu&#8217;il faut examiner.<\/p>\n\n\n\n<p class=\"\">La premi\u00e8re chose \u00e0 v\u00e9rifier est la norme de chiffrement. Le chiffrement AES sur le canal de donn\u00e9es est la base. Tout service VPN r\u00e9put\u00e9 devrait l&#8217;offrir en standard \u2014 pas comme fonctionnalit\u00e9 premium.<\/p>\n\n\n\n<p class=\"\">La prise en charge des protocoles est aussi importante. Recherchez des fournisseurs proposant \u00e0 la fois WireGuard et OpenVPN. Les protocoles modernes comme WireGuard offrent de la vitesse au quotidien ; OpenVPN constitue une solution de repli bien audit\u00e9e quand vous avez besoin d&#8217;une fiabilit\u00e9 maximale. Les fournisseurs qui ne proposent que PPTP ou L2TP sans IPSec ne sont plus \u00e0 jour.<\/p>\n\n\n\n<p class=\"\">La confidentialit\u00e9 persistante (PFS) m\u00e9rite d&#8217;\u00eatre v\u00e9rifi\u00e9e. Elle g\u00e9n\u00e8re une nouvelle cl\u00e9 de chiffrement pour chaque session. Ainsi, m\u00eame si une cl\u00e9 est expos\u00e9e, vos sessions pass\u00e9es restent prot\u00e9g\u00e9es. C&#8217;est le signe que le fournisseur a soigneusement r\u00e9fl\u00e9chi \u00e0 son architecture de s\u00e9curit\u00e9.<\/p>\n\n\n\n<p class=\"\">Lisez la politique de confidentialit\u00e9 avant de vous engager. Un chiffrement robuste prot\u00e8ge vos donn\u00e9es en transit \u2014 mais cela ne sert \u00e0 rien si le VPN conserve des journaux de votre activit\u00e9. Une politique sans journaux signifie que le fournisseur n&#8217;enregistre pas votre adresse IP, les sites que vous visitez ou l&#8217;heure de connexion.<\/p>\n\n\n\n<p class=\"\">Un kill switch est un autre indicateur d&#8217;un VPN bien con\u00e7u. Si votre connexion VPN tombe, le kill switch coupe imm\u00e9diatement votre acc\u00e8s internet \u2014 pour que votre vraie <a href=\"https:\/\/freevpnplanet.com\/fr\/blog\/how-to-know-the-ip-address-of-the-router\/\">adresse IP et <\/a>votre trafic non chiffr\u00e9 ne fuient pas pendant l&#8217;intervalle avant la reconnexion.<\/p>\n\n\n\n<p class=\"\">Si vous utilisez r\u00e9guli\u00e8rement des r\u00e9seaux Wi-Fi publics, le chiffrement n&#8217;est pas optionnel. Le trafic non chiffr\u00e9 sur un r\u00e9seau public est lisible par n&#8217;importe qui avec des outils basiques. Pour le t\u00e9l\u00e9travail et l&#8217;acc\u00e8s aux syst\u00e8mes d&#8217;entreprise, un VPN avec des protocoles de chiffrement robustes et une configuration d&#8217;acc\u00e8s \u00e0 distance ad\u00e9quate est indispensable.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Essayez Planet VPN \u2013 Chiffrement fiable, sans tracas<\/h2>\n\n\n\n<p class=\"\"><a href=\"https:\/\/freevpnplanet.com\">Planet VPN <\/a>utilise le chiffrement AES-256 et prend en charge les protocoles modernes, dont WireGuard et OpenVPN. Les fonctionnalit\u00e9s de base sont gratuites \u2014 sans paiement requis. Vous b\u00e9n\u00e9ficiez d&#8217;une connexion s\u00e9curis\u00e9e et chiffr\u00e9e avec une politique sans journaux et un kill switch int\u00e9gr\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Quel chiffrement est utilis\u00e9 pour les VPN ?<\/h3>\n\n\n\n<p class=\"\">La plupart des VPN utilisent AES-256 pour chiffrer le canal de donn\u00e9es \u2014 le trafic circulant entre votre appareil et le serveur. La n\u00e9gociation initiale, o\u00f9 les cl\u00e9s de chiffrement sont \u00e9chang\u00e9es, utilise g\u00e9n\u00e9ralement un chiffrement asym\u00e9trique comme RSA-2048. La combinaison exacte d\u00e9pend du protocole VPN utilis\u00e9.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Les VPN sont-ils toujours chiffr\u00e9s ?<\/h3>\n\n\n\n<p class=\"\">Les services VPN r\u00e9put\u00e9s chiffrent toujours votre trafic. C&#8217;est la fonction principale d&#8217;un VPN. Cependant, tous les protocoles ne sont pas \u00e9galement robustes \u2014 PPTP, par exemple, n&#8217;offre qu&#8217;une protection minimale selon les normes modernes. Si le chiffrement est votre priorit\u00e9, utilisez WireGuard, OpenVPN ou IKEv2\/IPSec.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">La police peut-elle vous tracer via un VPN ?<\/h3>\n\n\n\n<p class=\"\">Un VPN rend beaucoup plus difficile le tra\u00e7age de l&#8217;activit\u00e9 internet jusqu&#8217;\u00e0 une personne pr\u00e9cise, mais cela ne le rend pas impossible. Si un fournisseur VPN conserve des journaux et fait l&#8217;objet d&#8217;une demande l\u00e9gale valide, ces enregistrements peuvent \u00eatre transmis. Un fournisseur avec une stricte politique sans journaux \u2014 qui n&#8217;enregistre pas votre adresse IP ou votre activit\u00e9 \u2014 n&#8217;a rien \u00e0 transmettre. La juridiction compte aussi : le pays o\u00f9 la soci\u00e9t\u00e9 est \u00e9tablie influe sur ses obligations l\u00e9gales.<\/p>\n\n\n\n<h3 class=\"wp-block-heading JlqpRe\"><span class=\"JCzEY tNxQIb\"><span class=\"CSkcDe\">Quelles sont les trois choses dont le chiffrement VPN ne peut pas vous prot\u00e9ger ?<\/span><\/span><\/h3>\n\n\n\n<p class=\"\"><span class=\"JCzEY tNxQIb\"><span class=\"CSkcDe\">Premi\u00e8rement, il ne peut pas vous prot\u00e9ger des menaces d\u00e9j\u00e0 pr\u00e9sentes sur votre appareil. Si votre appareil est infect\u00e9 par un malware, le VPN chiffre le trafic, mais ne peut pas emp\u00eacher le malware d&#8217;op\u00e9rer. Deuxi\u00e8mement, il ne vous prot\u00e8ge pas du phishing. Cliquer sur un lien malveillant fonctionne de la m\u00eame fa\u00e7on avec ou sans VPN \u2014 le chiffrement ne v\u00e9rifie pas o\u00f9 vous allez. Troisi\u00e8mement, il n&#8217;emp\u00eache pas le suivi via les comptes auxquels vous \u00eates connect\u00e9. Si vous \u00eates connect\u00e9 \u00e0 Google ou Facebook, ces services peuvent toujours associer votre activit\u00e9 \u00e0 votre compte, quelle que soit votre adresse IP ou votre m\u00e9thode de connexion.<\/span><\/span><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Quand devriez-vous utiliser un VPN ?<\/h3>\n\n\n\n<p class=\"\">Utilisez un VPN chaque fois que vous \u00eates sur un r\u00e9seau que vous ne contr\u00f4lez pas \u2014 le Wi-Fi public dans un caf\u00e9, un a\u00e9roport ou un h\u00f4tel est le cas le plus courant. Sans VPN, votre trafic internet circule non chiffr\u00e9 et est lisible par n&#8217;importe qui sur le m\u00eame r\u00e9seau. Un VPN cr\u00e9e un tunnel chiffr\u00e9 entre votre appareil et le serveur VPN, de sorte que votre connexion reste priv\u00e9e m\u00eame sur des r\u00e9seaux partag\u00e9s.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Un VPN prot\u00e8ge-t-il vos donn\u00e9es utilisateur vis-\u00e0-vis des sites web ?<\/h3>\n\n\n\n<p class=\"\">Un VPN utilise le chiffrement pour prot\u00e9ger vos donn\u00e9es en transit \u2014 de votre appareil au serveur VPN. Cette partie du trajet est s\u00e9curis\u00e9e. Mais une fois que votre trafic quitte le serveur VPN et atteint un site web, le HTTPS standard prend le relais. Ce que les sites web collectent sur vous \u2014 activit\u00e9 du compte, cookies, saisies de formulaires \u2014 n&#8217;est pas quelque chose qu&#8217;un VPN peut contr\u00f4ler.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lorsque vous vous connectez \u00e0 un VPN, vos donn\u00e9es ne font pas que transiter par un serveur diff\u00e9rent \u2014 elles sont envelopp\u00e9es dans une couche de protection qui les rend illisibles pour quiconque les intercepterait. C&#8217;est le chiffrement. 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