What is perfect forward secrecy?

October 31st, 2023 in Privacy deep dives

Perfect forward secrecy (PFS) is a cryptographic feature of internet communication protocols that ensures even if a session is compromised, past and future sessions remain secure. It achieves this by using a new and unique private encryption key for each session. PFS is sometimes known simply as forward secrecy by those uncomfortable with the idea […]

Proton VPN Blog

Three years ago we launched Proton Mail. Today, we’re launching Proton VPN.

June 20th, 2017 in Proton News

We’re happy to announce that as of 12:00PM Geneva time today, Proton VPN is now available to the general public. Proton VPN is officially out of beta and we are allowing open signups for the first time. You can now directly get Proton VPN by visiting https://protonvpn.com/download After more than 1 year of development, and […]

Encrypted email provider Proton Mail launches free VPN service to counter increasing online censorship

June 20th, 2017 in Releases, Service Updates

Proton Mail, the world’s largest encrypted email provider, is announcing today the immediate worldwide release of Proton VPN, an innovative new VPN service built in response to increasing online surveillance and threats to net neutrality. This is the first new product developed by Swiss security firm Proton AG since the introduction of Proton Mail 3 […]

Understanding the VPN Threat Model

June 18th, 2017 in Privacy deep dives

In this article, we analyze the VPN threat model. This covers the threats a VPN is designed to guard against, and also the threats a VPN cannot counter. We believe that the only thing worse than no security, is a false sense of security. For this reason, whether it is Proton Mail or Proton VPN, […]