all-in-one privacy solution":["Proton Unlimited ist eine All-in-One-Datenschutzlösung"],"Black Friday":["Black Friday"],"No ads. Privacy by default.":["Keine Werbung. Privatsphäre als Standard."],"People before profits":["Menschen sind uns wichtiger als Gewinne"],"Security through transparency":["Sicherheit durch Transparenz"],"The best Proton Mail ${ BLACK_FRIDAY } deals":["Die besten Proton Mail-Angebote zum ${ BLACK_FRIDAY }"],"The world’s only community- supported email service":["Der weltweit einzige von der Community unterstützte E-Mail-Dienst"]},"specialoffer:limited":{"${ hours } hour":["${ hours } Stunde","${ hours } Stunden"],"${ hoursLeft }, ${ minutesLeft } and ${ secondsLeft } left":["Nur noch ${ hoursLeft }, ${ minutesLeft } und ${ secondsLeft }"],"${ minutes } minute":["${ minutes } Minute","${ minutes } Minuten"],"${ seconds } second":["${ seconds } Sekunde","${ seconds } Sekunden"],"Limited time offer":["Zeitlich befristetes Angebot"]},"specialoffer:listitem":{"Create multiple addresses":["Erstelle mehrere Adressen"],"Hide-my-email aliases":["Hide-my-email-Aliase"],"Quickly unsubscribe from newsletters":["Newsletter schnell abbestellen"],"Use your own domain name":["Verwende deine eigene Domain"]},"specialoffer:logos":{"As featured in":["Vorgestellt in"]},"specialoffer:metadescription":{"Get an encrypted email that protects your privacy":["Nutze einen verschlüsselte E-Mail-Dienst, der deine Privatsphäre schützt"]},"specialoffer:metatitle":{"Proton Mail Black Friday Sale - Up to 40% off":["Proton Mail Black Friday-Angebot – Bis zu 40 % Rabatt"]},"specialoffer:newmetadescription":{"Get up to 40% off Proton Mail subscriptions this Black Friday. Find great deals on our secure end-to-end encrypted email plans.":["Erhalte an diesem Black Friday bis zu 40 % Rabatt auf Proton Mail-Abonnements. Mache tolle Schnäppchen bei unseren sicheren, Ende-zu-Ende-verschlüsselten E-Mail-Abonnements."]},"specialoffer:newmetatitle":{"Proton Mail Black Friday sale | Up to 40% off secure email":["Proton Mail-Black-Friday-Angebot | Bis zu 40 % Rabatt auf sichere E-Mails"]},"specialoffer:note":{"* Billed at ${ TOTAL_SUM } for the first year":["* Zum Preis von ${ TOTAL_SUM } im ersten Jahr"],"*Billed at ${ TOTAL_SUM } for the first 2 years":["*Zum Preis von ${ TOTAL_SUM } in den ersten zwei Jahren"],"30-day money-back guarantee":["30-tägige Geld-zurück-Garantie"],"Billed at ${ TOTAL_SUM } for the first 2 years":["Zum Preis von ${ TOTAL_SUM } in den ersten zwei Jahren"],"Billed at ${ TOTAL_SUM } for the first year":["Zum Preis von ${ TOTAL_SUM } im ersten Jahr"],"You save ${ SAVE_SUM }":["Du sparst ${ SAVE_SUM }"]},"specialoffer:off":{"${ PERCENT_OFF } off":["− ${ PERCENT_OFF }"]},"specialoffer:testimonial":{"I love my ProtonMail":["Ich liebe mein ProtonMail"],"My favorite email service":["Mein Lieblings-E-Mail-Dienst"],"Thanks Proton for keeping us all safe in the complicated internet universe.":["Danke Proton, dass du uns alle im komplizierten Internet-Universum beschützt."],"You get what you pay for. In the case of big tech, if you pay nothing, you get used. I quit using Gmail and switched to @ProtonMail":["Du bekommst, wofür du bezahlst. Wenn du nichts bezahlst, wirst du bei der Nutzung von Big Tech ausgenutzt. Ich habe Gmail aufgegeben und bin zu @ProtonMail gewechselt"]},"specialoffer:time":{"Days":["Tage"],"Hours":["Stunden"],"Min":["Min."]},"specialoffer:title":{"And much more":["Und vieles mehr"],"Safe from trackers":["Sicher vor Trackern"],"Stay organized":["Bleibe gut organisiert"],"Black Friday email deals":["E-Mail-Angebote zum Black Friday"],"Don’t just take our word for it":["Verlasse dich nicht nur auf unser Wort"],"Make your inbox yours":["Mach deinen Posteingang zu deinem"],"Our story":["Unsere Geschichte"],"Transfer your data from Google in one click":["Übertrage deine Daten von Google mit einem Klick"]},"specialoffer:tooltip":{"Access blocked content and browse privately. Includes ${ TOTAL_VPN_SERVERS }+ servers in ${ TOTAL_VPN_COUNTRIES }+ countries, connect up to 10 devices, access worldwide streaming services, malware and ad-blocker, and more.":["Greife auf blockierte Inhalte zu und surfe privat. Umfasst ${ TOTAL_VPN_SERVERS } Server in über ${ TOTAL_VPN_COUNTRIES } Ländern, die Verbindung \nvon bis zu 10 Geräten, weltweite Streaming-Dienste, Malware- und Werbeblocker und mehr."],"Easily share your calendar with your family, friends or colleagues, and view external calendars.":["Teile deinen Kalender ganz einfach mit Verwandten, Freunden oder Kollegen und rufe externe Kalender auf."],"Includes support for 1 custom email domain, 10 email addresses, 10 hide-my-email aliases, calendar sharing, and more.":["Beinhaltet Unterstützung für eine eigene E-Mail-Domain, 10 E-Mail-Adressen, 10 „hide-my-email“-Aliasse, Kalenderfreigabe und mehr."],"Includes support for 3 custom email domains, 15 email addresses, unlimited hide-my-email aliases, calendar sharing, and more.":["Beinhaltet Unterstützung für 3 benutzerdefinierte E-Mail-Domänen, 15 E-Mail-Adressen, unbegrenzte „hide-my-email“-Aliase, Kalenderfreigabe und mehr."],"Manage up to 25 calendars, mobile apps, secured with end-to-end encryption, 1-click calendar import from Google, and more.":["Verwalte bis zu 25 Kalender, Ende zu Ende verschlüsselte mobile Apps, 1-Klick-Kalenderimporte von Google und vieles mehr."]},"Status banner":{"Learn more":["Mehr erfahren"],"Please note that at the moment we are experiencing issues with the ${ issues[0] } service.":["Bitte beachte, dass wir im Moment Probleme mit dem Dienst ${ issues[0] } haben."],"We are experiencing issues with one or more services at the moment.":["Im Moment gibt es Probleme mit einem oder mehreren Diensten."]},"Status Banner":{"At the moment we are experiencing issues with the Proton VPN service":["Im Moment gibt es Probleme mit dem Proton VPN-Dienst"],"Learn more":["Mehr erfahren"]},"steps":{"Step":["Schritt"]},"suggestions":{"Suggestions":["Vorschläge"]},"Support":{"Sub category":["Unterkategorie","Unterkategorien"]},"Support article":{"${ readingTime } min":["${ readingTime } Min.","${ readingTime } Min."],"Category":["Kategorie","Kategorien"],"Didn’t find what you were looking for?":["Hast du nicht gefunden, wonach du gesucht hast?"],"General contact":["Allgemeiner Kontakt"],"Get help":["Hilfe erhalten"],"Legal contact":["Kontakt für Rechtliches"],"Media contact":["Kontakt für Medien"],"Partnerships contact":["Kontakt für Partnerschaften"],"Reading":["Lesen"]},"Support Form Platform option":{"VPN for Android TV":["VPN für Android TV"],"VPN for Chromebook":["VPN für Chromebook"]},"Support troubleshooting":{"App version":["App-Version"],"Browser":["Browser"],"Check if this helps":["Schau, ob das hilft."],"Choose a product":["Produkt auswählen"],"Did this solve your issue?":["Hat dies dein Problem gelöst?"],"Faster assistance is just a few clicks away":["Schnellere Hilfe ist nur ein paar Klicks entfernt"],"How can we help?":["Wie können wir dir helfen?"],"No, contact support":["Nein, Support kontaktieren"],"Please fill out one field after another":["Bitte fülle ein Feld nach dem anderen aus"],"Please make your selections":["Bitte triff deine Auswahl"],"Proton account":["Proton-Konto"],"Proton for Business":["Proton for Business"],"Thank you for your feedback":["Danke für dein Feedback"],"What can we help with?":["Wobei können wir dir helfen?"],"Yes":["Ja"]},"support_modal_search_query":{"Search query":["Anfrage suchen"]},"support_search_button":{"Search":["Suchen"]},"support_search_i_am_looking_for":{"I'm looking for":["Ich suche"]},"SupportForm":{"For a faster resolution, please report the issue from the Bridge app: Help > Report a problem.":["Damit das Problem schneller gelöst werden kann, melde es bitte über die Bridge-App: Help > Report a problem (Hilfe > Problem melden)."],"Information":["Informationen"]},"SupportForm:option":{"Account Security":["Kontosicherheit"],"Contacts":["Kontakte"],"Custom email domain":["Benutzerdefinierte E-Mail-Domain"],"Email delivery and Spam":["E-Mail-Zustellung und Spam"],"Encryption":["Verschlüsselung"],"Login and password":["Anmeldung und Passwort"],"Merge aliases and 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Includes ${ TOTAL_VPN_SERVERS }+ servers in ${ TOTAL_VPN_COUNTRIES }+ countries, highest VPN speed, ${ TOTAL_VPN_CONNECTIONS } VPN connections, worldwide streaming services, malware and ad-blocker, and more.":["Greife auf blockierte Inhalte zu und surfe privat. 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As the world’s largest encrypted email provider(neues Fenster), people have frequently asked us what is the best VPN service. In this article, we discuss what to be aware of when choosing a VPN service, and our recommended VPN security requirements.
What is a VPN?
A Virtual Private Network (VPN) is a tool to secure your internet connection by masking your device’s IP address and encrypting your traffic. When your computer connects to a VPN, all your online activity passes through the Virtual Private Network, which in theory can shield you from surveillance or prevent your identity from being revealed.
Why use a VPN?
The primary use cases for a VPN service are the following:
Prevent your internet browsing from being monitored
Bypass censorship – VPNs allow you to access content that might be blocked in your country by the government or the content provider
Provide higher connection security when connecting to the internet from insecure locations (public wifi hotspot for example)
Whether or not a VPN service can actually accomplish this however depends significantly on the service in question. In fact, the vast majority of VPN services suffer from one or more security problems, which is why great care must be taken when selecting the best VPN service.
VPN Security Problems
About a year ago, we started to analyze VPN services more deeply in response from user inquiries. As we dug deeper however, we found numerous security and privacy flaws with most existing VPN services. This actually was the impetus that drove us to start working on VPN (more about this later). Below is a summary of the main VPN security issues.
VPN Security Vulnerabilities
Using pre-shared keys – A number of mainstream commercial VPNs have their preshared keys (PSKs) posted online; these include PureVPN and IPVPN(neues Fenster) . If an attacker knows the PSKs for a VPN service and has access to the network a user is using, the attacker can stage a man in the middle attack and decrypt all of the user’s traffic.
Insecure protocols and encryption – Many VPN services use PPTP protocol as a basic way to tunnel and encapsulate data packets. However, PPTP is fundamentally insecure due to using short length encryption keys and password hashes that can be easily cracked by a well resourced state actor. L2TP/IPSec is another popular VPN protocol. However, the NSA has already succeeded in tampering with it(neues Fenster). Furthermore, many VPN services which use more secure protocols such as OpenVPN remain vulnerable because of the use of insecure ciphers.
No Forward Secrecy – Most VPN services do not require use of Perfect Forward Secrecy ciphers, so VPN network traffic can be saved, and decrypted later if the encryption keys or algorithms are compromised.
DNS Leakage – Whenever a web connection is made, a computer will first translate a domain name into an IP address. This lookup is done via DNS servers. Thus, DNS lookup records(neues Fenster) also contain a log of all websites visited. While VPN services usually will protect web traffic, many do not protect DNS lookups, meaning that user’s browsing history can still be reconstructed from DNS lookups.
Methods of VPN Compromise
Even if a VPN service is not vulnerable to the internal problems listed above, they can still be compromised externally. Common problems that can lead to a VPN service being compromised include the following:
Jurisdiction – VPN providers are subject to the laws of the country that they operate in, and these laws (like the Investigatory Powers Act(neues Fenster) in the UK and the Foreign Intelligence Surveillance Act in the US) can force VPN providers to compromise their users. This means VPN providers with significant US and UK presence are compromised by default. These include HideMyAss (UK), VyperVPN (operated from the US), Strong VPN (US), HotSpot Shield (US), IP Vanish (US) and many others.
Compromised servers – VPN providers cannot maintain physical control and supervision over all servers, especially servers in countries that are not privacy friendly. This creates opportunities for state actors to compromise VPN exit servers, sometimes with the collusion (forced or not) of the companies providing servers to VPN operators. In a typical VPN setup, compromise of the exit server completely compromises the browsing activity of VPN users.
Correlation Attacks – Even if the exit server itself is not compromised, network based correlation attacks can still compromise a user. By seeing who is connecting to an VPN exit server at a given instant, and what sites the VPN exit server is connecting to, a user’s browsing can be reconstructed. Such an attack is easily within reach of most state actors as they can request assistance from ISPs.
What is the best VPN service?
It is clear that it’s not easy to build a VPN service that adequately protects users. In particular, some of the methods of VPN compromise are extremely difficult to defend against. Proton Mail’s mission has always been to protect freedom online, and to provide security and privacy to everyone. Today we protect diverse groups ranging from journalists and activists, to business professionals.
Having a secure VPN is an important part of this, which is why we are also developing Proton VPN(neues Fenster). With the Proton VPN project, we hope to bring to the public a secure and trustworthy free VPN service(neues Fenster) which addresses many of the security shortcomings which impact existing VPN services.
We believe that Proton VPN is able to meet a much higher standard for VPN security(neues Fenster), and the only VPN service which properly addresses all the shortfalls mentioned above. Most importantly, it meets the important conditions for VPN trust(neues Fenster).
Is it safe to use a VPN service?
If privacy is your only objective, the best VPN actually isn’t a VPN at all, but a free software known as Tor. Proton Mail has actually recently rolled out improved support for encrypted email with Tor(neues Fenster) through our new onion site. While Tor does provide a great deal of anonymity and security, there are still many reasons why you might still want to use a VPN service.
For one, Tor’s privacy comes at the cost of performance, and Tor is notoriously slow compared to the best VPN services out there. Furthermore, Tor is now increasingly being targeted by state actors(neues Fenster), so a trusted VPN service could be safer. VPN also has strong use cases for bypassing censorship and content blocks, or for obtaining better security from insecure locations like public wifi hotspots.
Do you have an incident response plan to protect your business from financial
and reputational damage? Find out how Proton Pass for Business can help you stay
safe.