Illustration for ProtonMail security update

ProtonMail is now more secure against sophisticated attacks

September 9th, 2019 in Security

At ProtonMail, 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 further enhance user security. We know that many people, such as journalists, use ProtonMail for sensitive communications and may be targeted by highly sophisticated threat actors. As …

Incident report regarding the March 15th, 2018 technical issues

March 16th, 2018 in Articles & News

Here is what happened, why it was not fixed sooner, and what we are doing to prevent this from ever happening again. The incident began with a typo in a configuration relating to our anti-spam subsystem which was committed by the on-shift engineer as part of our routine anti-spam operations. Integration tests were performed but …

encrypted email authentication

Improved Authentication for Email Encryption and Security

December 1st, 2016 in Encryption

Today, we are happy to announce the launch of a brand new authentication system for ProtonMail’s secure email service using just a single password. ProtonMail launched with a two-password system—one to authenticate the user to ProtonMail, and one to decrypt the mail. The security benefit provided by this separation is easy to understand, but it …

OpenPGPjs email encryption library

ProtonMail now the maintainer of OpenPGPjs email encryption library

August 2nd, 2016 in Encryption

OpenPGPjs is the world’s most popular open source JavaScript PGP email encryption library and is used by millions of end users and hundreds of developers.   We are happy to announce that ProtonMail will become the primary maintainer of the OpenPGPjs project. We would like to thank Tankred Hase, formerly the co-founder of whiteout.io, for …

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