Last Friday, a weaponized version of a NSA exploit was used to infect over three hundred thousand computers in over 150 countries with the WannaCry ransomware. In addition to government ministries and transportation infrastructure, the British National Health Service (NHS) was crippled, disrupting treatment and care for thousands of patients, and putting countless lives at …

Earlier today, Wikileaks dumped a large database of secret documents from the CIA in a released dubbed #Vault7. Here we do a deeper analysis of the leak and the broader implications on online security and encrypted services. Our in-depth analysis of the leaked CIA files is found at the bottom of this post. First, we …

After last week’s announcement of an even larger Yahoo breach impacting 1 billion users, signups of ProtonMail have doubled again to hit an all time high due to users looking for a Yahoo Mail replacement. Update February 16th, 2017 – Yahoo just announced another major breach, which took place in 2015 and 2016. We had …

Earlier this week, Donald Trump won a stunning election victory that will put him in charge of the world’s most powerful mass surveillance infrastructure. Regardless of which side of the political spectrum you are on, Trump’s control over the NSA is now an indisputable fact, and we think it is worth taking a closer look …

In the past two months, many of you have reached out to us to ask about the mysterious tweets we sent to Google in August. At ProtonMail, transparency is a core value, and we try to be as transparent with our community as possible. As many people have continued to point out to us, we …

Updated October 7, 2016 with additional clarification and analysis of Yahoo’s denial Dear ProtonMail Community, Two weeks ago, we published a security advisory regarding the mass hacking of Yahoo. Unfortunately, due to recent events, we are issuing a second advisory regarding all US email providers. What happened? This week, it was revealed that as a …

We are happy to announce the next version of ProtonMail’s secure email service. ProtonMail 3.4 adds two much demanded features, Custom Filters and Embedded Images In order to make encrypted email easier to use, we have put a lot of focus this summer on adding features that exist in legacy email providers into ProtonMail, while …

Due to some unforeseen circumstances, we have made the difficult decision to delay the ProtonMail release from January 26th until February 18th. EDIT Feb 18, 2016: We have published a release update here: https://protonmail.com/blog/protonmail-release-update/ Back in December, we announced that ProtonMail would be officially released next Tuesday. However, after an extensive discussion yesterday with all …

In September of this year, the Swiss Parliament passed a new Swiss surveillance law, known as the Nachrichtendienstgesetz (NDG) in German and la Loi sur le renseignement (LRens) en française. 2017 Update – In the months since the law was first introduced, we have had repeated contact with the Swiss government and held a meeting …

In the wake of the devastating terrorist attack on Paris two weeks ago, the entire team at ProtonMail is shocked and horrified. Being based in Geneva, Paris is not so far away, and in fact, many of our team have family and friends in Paris, whose safety we were immensely concerned about on the evening …

At ProtonMail, privacy is one of our core values. This means more than just building an email service which respects privacy. It means building an entire ecosystem around the idea of privacy being the default online. From the onset, it is clear that this is not something we can do alone. Last summer, over ten thousand …

A few weeks back, we had hundreds of people informing us via Twitter that ProtonMail was being used by Elliot Alderson from this summer’s hit TV show, Mr. Robot. With the highly anticipated season finale airing tomorrow (8/26/2015), we are finally able to share the backstory behind how ProtonMail ended up in Mr. Robot. ProtonMail …