ProtonBlog
NewsletterSubscribe by RSS

Proton News

After the success of last year’s auction, we are selling three more Proton Lifetime Accounts this year to benefit organizations worthy of our community’s support. The auctions will take place on eBay and will start next week at 8 PM Central European
This article documents Proton Calendar’s security model and illustrates how our product protects calendar-related sensitive data. We examine the advantages and limitations of our approach. This document is somewhat technical, discussing how encrypti
Update Nov. 30, 2019: Because Proton Mail only offers discounts once per year, we have decided to extend our Black Friday promotion until 11:59 PM on Dec. 8, 2019, San Francisco time. (That’s 2:59 AM Dec. 9 in New York and 8:59 AM Dec. 9 in Geneva, S
UPDATE Nov. 19, 2019: We have recently confirmed that our users in Belarus can access Proton Mail and Proton VPN once again. While there has been no official communication as to why Proton Mail and Proton VPN were unblocked (or why we were blocked in
We’re happy to announce that the Proton Mail iOS app is now fully open source.  We believe in transparency, the power of community, and building a more private and secure future for all. That’s why our web app has been open source since 2015, and it
This post documents Proton Mail’s iOS security model and illustrates how our application protects sensitive data on client iOS devices. The advantages and limitations of this approach are discussed, and the source code can be viewed here. You can als
Today we’re unveiling our biggest redesign ever. Not only does Proton Mail Version 4.0 look more modern on the surface, it’s part of our ongoing transition to a newer software framework that lays the foundation for future features, new products, and
Since we launched in 2014, Proton Mail has been the preferred email service provider for activists around the world. Protecting freedom of speech and democracy is, after all, one of the main reasons we created Proton Mail in the first place. Normally
This is a challenging question to answer, but it is also a fair one, so we wanted to share our views about this in a blog post. In general, we strive to make our service require as little trust as possible. We encrypt data in a way that does not allo
Version 1.12 of the Proton Mail Android app makes it easy for anyone to manage multiple Proton Mail accounts right on their phone. This feature allows you to be logged into multiple Proton Mail accounts at the same time, and easily switch between the
At Proton, your security is always our first priority. That’s why, in recent months, we have added support for MTA-STS, DANE, WKD, DNS CAA, and much more to Proton Mail to further enhance your security. We know that many people, such as journalists,