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Today, we are marking a major milestone in our mission to expand privacy online with the launch of a new beta version of Proton Mail for web that includes crucial new features like Single Sign-On and persistent sessions (“remember me”).  Today’s upd
We updated this article on Sept. 25, 2020, to provide more context about why Proton is joining the Coalition for App Fairness. In recent months, regulators in both the US and Europe have begun looking into app store policies. These investigations ar
All users who have a paid plan can use the Import-Export app to easily transfer emails between accounts or download your messages to your device.  This app lets you import your entire inbox from another email service provider, such as Gmail, Yahoo,
UPDATE Sept. 15, 2020: SwissSign has dealt with the DDoS attack and has taken measures to prevent similar outages in the future. Therefore, we are using them again as our certificate authority. We have updated the fingerprints at the bottom of this a
Updated: September 22, 2022 This article documents Proton Drive’s security model by showing how it uses end-to-end encryption to protect your sensitive data. While somewhat technical, this document is meant to be accessible to a general audience and
Belarusians are in the streets, no longer willing to live under the tyranny of “Europe’s last dictator.” We at Proton stand with the people of Belarus against the violent suppression of their freedoms, and we would like to once again offer our suppor
As part of our mission to make security, privacy, and freedom accessible to all, we maintain two open source cryptography libraries that make it easier for developers to apply strong encryption in their projects. We have been the maintainers of OpenP
UPDATE July 21, 2020: Multi-account support for iOS has exited beta and is now available to all our iOS users. Version 1.12 of Proton Mail iOS lets you manage multiple Proton Mail accounts on your phone without needing to log in and log out repeated
Starting today, every app you use to access your Proton Mail inbox is open source and has passed an independent security audit. One of our guiding principles is transparency. You deserve to know who we are, how our products can and cannot protect yo
The following article presents a high-level overview of Proton Mail’s Android security model and explains how the app protects your sensitive data. You can view our Android app’s open-source code on GitHub. Read our threat model for more information
We are one step closer to fully open sourcing all our apps. Proton Mail Bridge joins iOS and the web app as open source software, and it has also passed an independent security audit. Trust and transparency are core values of Proton Mail. We want yo