{"id":149640,"date":"2025-03-24T18:33:00","date_gmt":"2025-03-24T15:33:00","guid":{"rendered":"https:\/\/freevpnplanet.com\/?post_type=post&p=149640"},"modified":"2025-03-31T16:47:50","modified_gmt":"2025-03-31T13:47:50","slug":"how-safe-is-telegram","status":"publish","type":"post","link":"https:\/\/freevpnplanet.com\/it\/blog\/how-safe-is-telegram\/","title":{"rendered":"Quanto \u00e8 sicuro Telegram?"},"content":{"rendered":"

Il recente arresto del fondatore di Telegram, Pavel Durov, avvenuto il 24 agosto 2024 all’aeroporto di Parigi-Le Bourget, ha riportato l’attenzione sull’app di messaggistica. Diversi governi l’hanno accusata di essere un importante “luogo d’incontro” per personaggi poco raccomandabili, tra cui truffatori, terroristi e produttori e consumatori di pornografia infantile. <\/span><\/p>\n

Secondo l’accusa, questi criminali scelgono Telegram come strumento di comunicazione perch\u00e9 la crittografia end-to-end (E2E) dell’app \u00e8 generalmente considerata molto sicura.<\/span><\/p>\n

\"How<\/p>\n

Cos’\u00e8 la crittografia end-to-end?<\/span><\/h2>\n

La crittografia E2E prevede l’uso di due chiavi, una pubblica e una privata, per crittografare le chat su entrambi i dispositivi coinvolti nella conversazione. La chiave privata \u00e8 disponibile solo al mittente e al destinatario. Questo metodo \u00e8 ampiamente considerato altamente impenetrabile, tanto che Telegram si \u00e8 definito \u201cpi\u00f9 sicuro di applicazioni di messaggistica di massa come WhatsApp e Line\u201d.<\/span><\/p>\n

Caratteristiche di sicurezza di Telegram<\/span><\/h2>\n

L’applicazione di Durov, che vanta oltre 900 milioni di utenti attivi in tutto il mondo, offre un livello di sicurezza paragonabile a quello di WhatsApp e di altre applicazioni simili. Tuttavia, va notato che l’app di Durov non applica la crittografia end-to-end a tutte le chat, ma solo a quelle impostate come “segrete”. <\/span><\/p>\n

Queste chat possono essere configurate per autodistruggersi dopo un certo periodo di tempo e per impedire che i messaggi inviati alla conversazione segreta vengano inoltrati ad altre chat. Telegram utilizza un protocollo proprietario per la crittografia che garantisce una maggiore privacy, ma che \u00e8 stato criticato per la sua mancanza di trasparenza.<\/span><\/p>\n

I limiti delle chat classiche<\/span><\/h3>\n

La crittografia su Telegram non \u00e8 attivata automaticamente per tutte le chat, i gruppi e i canali. Per queste chat “classiche”, i messaggi vengono memorizzati sui server di Telegram e, in quanto tali, sono tecnicamente accessibili, in quanto lasciano una traccia che pu\u00f2 essere intercettata. <\/span><\/p>\n

Questo rappresenta una distinzione significativa rispetto ad altri servizi di messaggistica concorrenti, in primis WhatsApp e Signal (un’altra app di messaggistica considerata altamente sicura per le comunicazioni private), che mantengono la crittografia end-to-end come impostazione predefinita.<\/span><\/p>\n

Crittografia server-cliente e distribuzione geografica<\/span><\/h3>\n

Tuttavia, Telegram sostiene di proteggere anche le chat non coperte dalla crittografia end-to-end, utilizzando un’infrastruttura distribuita che impiega la cosiddetta crittografia server-client. In pratica, i dati delle chat sono distribuiti in pi\u00f9 centri dati situati in varie aree geografiche, ciascuno controllato da un’entit\u00e0 legale separata che rientra in giurisdizioni diverse. <\/span><\/p>\n

Anche le chiavi di decodifica sono suddivise in pi\u00f9 parti e non vengono mai conservate insieme ai dati da proteggere, il che rende pi\u00f9 difficile recuperare i dati associati alle conversazioni memorizzati sui server di Telegram.<\/span><\/p>\n

\"Telegram\u2019s<\/p>\n

Il ruolo delle VPN nel miglioramento della privacy<\/span><\/h2>\n

In questo contesto, l’uso delle reti private virtuali (VPN) \u00e8 diventato molto popolare tra gli utenti che cercano un ulteriore livello di privacy e sicurezza. PlanetVPN<\/a> pu\u00f2 mascherare l’indirizzo IP di un utente e crittografare il suo traffico Internet, rendendo molto pi\u00f9 difficile per terzi monitorare o tracciare le sue attivit\u00e0 online. <\/span><\/p>\n

Questo strumento aggiuntivo \u00e8 spesso utilizzato da chi desidera garantire l’anonimato quando accede a Telegram o ad altre piattaforme simili, in particolare nelle regioni in cui governi o altre entit\u00e0 cercano di monitorare o limitare le comunicazioni.<\/span><\/p>\n

Protezioni legali e divulgazione dei dati<\/span><\/h2>\n

Di conseguenza, per obbligare alla divulgazione dei dati sono necessarie diverse ordinanze di tribunali di varie giurisdizioni. Questa struttura garantisce che nessun governo o coalizione di governi possa ledere la privacy e la libert\u00e0 di espressione delle persone. <\/span><\/p>\n

Solo nei casi in cui vi sia una preoccupazione pressante e universale che sia stata esaminata e convalidata da pi\u00f9 sistemi legali su scala globale, Telegram pu\u00f2 essere obbligata a divulgare i dati degli utenti. Ad oggi, nessun dato \u00e8 stato divulgato a terzi, inclusi i governi.<\/span><\/p>\n

Sebbene la crittografia server-client sia considerata ragionevolmente sicura, va notato che questo livello “base” di sicurezza viene applicato solo tra gli utenti e il server. Ci\u00f2 significa che Telegram pu\u00f2 potenzialmente accedere ai propri server e intercettare le comunicazioni, comprese le chiamate e le videochiamate. <\/span><\/p>\n

I criminali informatici potrebbero fare lo stesso se riuscissero a violare i sistemi di sicurezza della piattaforma.<\/span><\/p>\n

\"Telegram\u2019s<\/p>\n

Attivazione della crittografia end-to-end di Telegram<\/span><\/h2>\n

E il secondo livello di sicurezza di Telegram, la crittografia end-to-end? <\/b>Questo rappresenta il pi\u00f9 alto livello di sicurezza disponibile sulla piattaforma e viene applicato alle chat segrete, che possono essere attivate nelle impostazioni delle singole chat, anche se non in modo particolarmente intuitivo. <\/span><\/p>\n

Per attivare le chat segrete su Telegram, bisogna andare nelle impostazioni di ciascuna chat, individuare il profilo dell’utente e toccare i tre punti in alto a destra. A questo punto, selezionate l’icona con il lucchetto per avviare la chat segreta.<\/span><\/p>\n

Il protocollo MTProto e le sue caratteristiche crittografiche<\/span><\/h3>\n

Va notato che il protocollo proprietario MTProto, applicato ai server di Telegram, \u00e8 disponibile solo in questa fase. Questo protocollo \u00e8 in grado di proteggere le comunicazioni degli utenti attraverso la crittografia client-to-client. <\/span><\/p>\n

Per approfondire, il protocollo MTProto utilizza una combinazione di algoritmi crittografici, tra cui la crittografia AES-256 per i messaggi, la crittografia RSA a 2048 bit per gli scambi di chiavi crittografiche e lo scambio di chiavi Diffie-Hellman per la creazione di chat segrete su canali di comunicazione non protetti.<\/span><\/p>\n

Essendo un protocollo non open source, gli esperti di sicurezza indipendenti non sono in grado di verificarne il livello di sicurezza e le eventuali vulnerabilit\u00e0, il che non giova a Telegram. In generale, gli esperti di sicurezza preferiscono le librerie di crittografia standardizzate, dove le potenziali vulnerabilit\u00e0 sono note e possono essere affrontate e risolte in modo adeguato. <\/span><\/p>\n

Di conseguenza, l’impenetrabilit\u00e0 della crittografia end-to-end di Telegram rimane incerta.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Il recente arresto del fondatore di Telegram, Pavel Durov, avvenuto il 24 agosto 2024 all’aeroporto di Parigi-Le Bourget, ha riportato l’attenzione sull’app di messaggistica. Diversi governi l’hanno accusata di essere un importante “luogo d’incontro” per personaggi poco raccomandabili, tra cui truffatori, terroristi e produttori e consumatori di pornografia infantile. Secondo l’accusa, questi criminali scelgono Telegram…<\/p>\n","protected":false},"author":28,"featured_media":149570,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[326],"tags":[],"class_list":["post-149640","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cybersecurity-e-protezione-di-internet"],"yoast_head":"\nSicurezza di Telegram: Crittografia, uso della VPN e controversie spiegate<\/title>\n<meta name=\"description\" content=\"Scoprite come Telegram protegge i dati degli utenti con la crittografia, il ruolo delle VPN nel migliorare la privacy e le controversie sul suo protocollo MTProto. 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Scoprite come si confronta con WhatsApp e Signal.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/freevpnplanet.com\/it\/blog\/how-safe-is-telegram\/\" \/>\n<meta property=\"og:site_name\" content=\"Planet VPN\" \/>\n<meta property=\"article:published_time\" content=\"2025-03-24T15:33:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-03-31T13:47:50+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2024\/12\/blue-window-tide-furniture-sale-telegram-post-1-e1735227160947.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1080\" \/>\n\t<meta property=\"og:image:height\" content=\"746\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Natalya Bennett\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Natalya Bennett \u2013 Autrice di articoli\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/freevpnplanet.com\/it\/blog\/how-safe-is-telegram\/\",\"url\":\"https:\/\/freevpnplanet.com\/it\/blog\/how-safe-is-telegram\/\",\"name\":\"Sicurezza di Telegram: Crittografia, uso della VPN e controversie spiegate\",\"primaryImageOfPage\":{\"@id\":\"https:\/\/freevpnplanet.com\/it\/blog\/how-safe-is-telegram\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/freevpnplanet.com\/it\/blog\/how-safe-is-telegram\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/freevpnplanet.com\/wp-content\/uploads\/2024\/12\/blue-window-tide-furniture-sale-telegram-post-1-e1735227160947.png\",\"datePublished\":\"2025-03-24T15:33:00+00:00\",\"dateModified\":\"2025-03-31T13:47:50+00:00\",\"author\":{\"@id\":\"https:\/\/freevpnplanet.com\/it\/#\/schema\/person\/460a0e735321e43887b7e3f11bad7737\"},\"description\":\"Scoprite come Telegram protegge i dati degli utenti con la crittografia, il ruolo delle VPN nel migliorare la privacy e le controversie sul suo protocollo MTProto. 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