Product updates
![Illustration of Proton Mail in iOS](https://res.cloudinary.com/dbulfrlrz/images/f_auto,q_auto/v1707574083/wp-pme/PM-blog-default-app-cover/PM-blog-default-app-cover.png?_i=AA)
- Product updates
- Proton Mail
If you’re an iPhone or iPad user, you can now set Proton Mail as your default
email app in the latest version of iOS. This is a welcome decision from Apple to
allow users to choose their preferred email service, and means that “mailto”
links can now
![An illustration of Proton Mail's public keys.](https://res.cloudinary.com/dbulfrlrz/images/f_auto,q_auto/v1707574301/wp-pme/ProtonMail-batch-GCD-audit/ProtonMail-batch-GCD-audit.png?_i=AA)
- Product updates
- Proton Mail
This summer, we conducted a security audit to determine whether Proton is
susceptible to an attack against public key cryptography, known as a batch GCD
attack. As a result of our analysis, we can confirm that none of our users is
vulnerable to this
![Proton 4.0 is now in beta](https://res.cloudinary.com/dbulfrlrz/images/f_auto,q_auto/v1707574457/wp-pme/proton-4-beta/proton-4-beta.png?_i=AA)
- Product updates
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
![](https://res.cloudinary.com/dbulfrlrz/image/upload/v1688367909/static/blog/blog-banner_cd48c8.png)
- Product updates
- Proton Mail
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
![](https://res.cloudinary.com/dbulfrlrz/images/f_auto,q_auto/v1707565079/wp-pme/drive-sec-model-blog@2x/drive-sec-model-blog@2x.png?_i=AA)
- Product updates
- Proton Drive
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
![An illustration of the multi-account feature for iOS.](https://res.cloudinary.com/dbulfrlrz/images/f_auto,q_auto/v1707575104/wp-pme/ProtonMail-blog-multi-account-ios-IM/ProtonMail-blog-multi-account-ios-IM.png?_i=AA)
- Product updates
- Proton Mail
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
![An illustration of the Proton Mail Android app going open source.](https://res.cloudinary.com/dbulfrlrz/images/f_auto,q_auto/v1707575117/wp-pme/protonmail-android-open-source-IM/protonmail-android-open-source-IM.png?_i=AA)
- Product updates
- Proton Mail
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
![illustration of Proton Mail Android client security](https://res.cloudinary.com/dbulfrlrz/images/f_auto,q_auto/v1707575112/wp-pme/ProtonMail-Android-security-model/ProtonMail-Android-security-model.png?_i=AA)
- Product updates
- Proton Mail
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
![Illustration of Proton Mail Bridge open source](https://res.cloudinary.com/dbulfrlrz/images/f_auto,q_auto/v1707575120/wp-pme/protonmail-bridge-open-source-blog/protonmail-bridge-open-source-blog.png?_i=AA)
- Product updates
- Proton Mail
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
![Illustration of the Bridge security model](https://res.cloudinary.com/dbulfrlrz/images/f_auto,q_auto/v1707575125/wp-pme/protonmail-bridge-security-model-IM/protonmail-bridge-security-model-IM.png?_i=AA)
- Product updates
- Proton Mail
Proton Mail Bridge is a desktop application that runs in the background on your
computer and encrypts and decrypts your mail as it enters and leaves your
device. It allows for full integration of your Proton Mail account with email
clients like Micro
- Product updates
- Proton Mail
We are excited to announce that starting today, you can use Bridge to connect
your Proton Mail account with your desktop email app on the Linux operating
system.
Proton Mail Bridge is a desktop app available to all paying subscribers that
integrates