Proton
Encrypted Email Service Proton Mail is hosted in Switzerland

Earlier this week, we were invited to speak about our free encrypted email service at Swissnex San Francisco’s “Ensuring Safety for the Future of Cyberspace”(new window) event. As some of you may know, Swissnex(new window) is a part of Swiss embassies and consulates worldwide and has the mission of connecting Swiss technology and innovation with local communities. At the event, one of our team members, Bart Butler, explained why and how we utilize end-to-end encryption to provide email privacy to Proton Mail users.

During our talk, we explored the encryption technology behind Proton Mail, as well as the physical security measures we take to ensure that user data is protected. During the talk, we also discussed details of OpenPGP.js, the front end cryptography library Proton Mail uses to encrypt emails. This library, which we are involved in developing, is completely open source and available for review.

Proton Mail uses open source cryptography library OpenPGP.js(new window)
A slide from our presentation showing how we implement encryption in the inbox with OpenPGP.js

Proton Mail Secure Swiss Datacenter Bunker(new window)
A slide showcasing the physical bunker our data center lives under

We also gave the audience a quick look at Proton Mail’s maximum security data center which is located deep in the Swiss alps. The facility is housed in a former military bunker designed to resist a nuclear attack. Proton Mail servers are located deep underground beneath hundreds of meters of solid granite rock in order to provide state of the art physical security.

  • We were excited to have the opportunity to share our encryption technology with the Swiss and American audience at Swissnex. Proton Mail has a fast growing international user base and it is always amazing to be able to discuss the future of encrypted and anonymous email with other privacy advocates from across the world. We look forward to sharing Proton Mail with you at other events in the future.

Sign up and get a free encrypted email account from Proton Mail

Related articles

how to change your email address
Learn how to change your email address across email services, including Gmail, Yahoo, Outlook, and iCloud without risking your data.
Who is responsible for protecting CUI?
  • Privacy guides
This article breaks down CUI, the parties responsible for marking and guarding it, and what goes into keeping it secure.
The cover image for a Proton Pass blog about how to change your Facebook password settings. The image shows the Facebook icon with a password field beneath it and a tick at the end of the password field
Here's a step-by-step guide for how to change or reset your Facebook password settings — and how to create a strong password you'll remember with Proton Pass.
A politician at a podium, a smartphone that's been unlocked, and the Reichstag building.
German regional politicians overall have good cybersecurity, but 3 regions had at least half of their regional MPs' email addresses appear on the dark web. Read more to find out which.
A Gantt chart showing progress through the product roadmaps.
  • Product updates
We're sharing the roadmaps for all our services so you can see what's coming and give us your feedback.
A laptop with a Gantt chart, representing the Proton Drive roadmap for spring 2025
  • Product updates
  • Proton Drive
This spring, we're adding long-awaited features in Proton Drive, like albums, folder sync on macOS, and new Docs formatting tools. See more.