General information

Internet speed or how fast data transfers in a network is calculated using different metrics: latency, bandwidth, and throughput.  This article aims to explain these metrics and how the TCP protocol — the way most data is transmitted over the Internet nowadays — impacts them.  Sending off your data packets […]

With each new release of a Proton VPN app, there are improvements, bug fixes, and new features that improve the user experience. It is therefore essential to always update your Proton VPN apps to the latest version. Additionally, if you need assistance with any of our apps, it’s very important […]

In December 2019 we made a minor update to Proton VPN’s Terms and Conditions and Privacy Policy reflecting that the legal party you are contracting with was changed from Proton VPN AG (Switzerland) to Proton Technologies AG (Switzerland). As Proton Technologies AG was the parent company of Proton VPN (and […]

Proton VPN is a service provided by Proton Technologies AG, an employee-owned company based in Switzerland. Proton was founded in 2014 by a team of scientists who met at CERN (the European Center for Nuclear Research) and created Proton Mail, the world’s largest encrypted email service. Proton employees hold the […]

As of Sept. 18, 2019, the Chinese government is blocking access to Proton VPN as part of a larger crackdown on Internet freedom.  The Chinese government works hard to control its citizens’ access to the Internet. The Great Firewall employs a vast system of technical tools, including DNS filtering, URL […]

Neagent stands for the Network Extension Agent and it facilitates the connection from your Mac to our VPN servers. Since our VPN app for Mac uses the IKEv2/IPSec VPN protocol, allowing the neagent to access Keychain is a necessary step to create a secure VPN connection.  Before you can connect, […]

IKEv2 stands for Internet key exchange version two, and IPSec refers to the Internet protocol security suite. Together, they form a VPN protocol. A VPN protocol, or a “tunneling protocol,” is the set of instructions your device uses to negotiate the secure encrypted connection that forms the network between your […]

Proton VPN supports most popular Internet browsers. However, Proton VPN uses cutting-edge technology that is only supported in the latest versions of these browsers. To maintain the level of security expected by our users, we occasionally need to drop support for outdated browser versions that do not have the security […]

Occasionally, you may find that the Proton VPN server you always connect to has been removed.  At Proton VPN, we continuously upgrade our servers to ensure the best performance and stability. These investments are what make Proton VPN consistently the fastest VPN service. This means that we will periodically retire […]

  Peer-to-Peer is a network protocol for computer users that allows to search and download content. Because of the unique structure of the network, it is very efficient for downloading large files. On a Peer-to-Peer network, when a user is searching for a specific file, the installed software is locating […]