Illustration of alternative routing

Introducing alternative routing to prevent censorship of Proton apps

March 12th, 2020 in Releases

We’re announcing today a new anti-censorship system that can help users access our website if their government, ISP, or network administrator has blocked Proton services. The alternative routing feature is not yet deployed as of writing, but in the coming weeks, we plan to release it across all of our mobile and desktop applications. With …

Illustration of vulnerability disclosure

ProtonMail’s responsible vulnerability disclosure policy

March 5th, 2020 in Security

Our mission at ProtonMail is to make online safety accessible to everyone. Millions of people depend on our products to secure their communications and keep their information private. In order to make this high level of security accessible to all Internet users, we must work to integrate ProtonMail seamlessly with third-party products, from web browsers …

why users pay for protonmail

Privacy isn’t free. Here’s why that’s a good thing.

February 25th, 2020 in Privacy

Every once in a while, we are asked the question, why should I pay for ProtonMail when I can use Gmail for free? Or why should I pay for ProtonMail when there are cheaper email services available? This is actually a good question worthy of a deeper discussion.  Google isn’t actually free First, it’s important …

An illustration of cryptojacking.

How to keep your devices safe from cryptojacking

February 19th, 2020 in Security

Cryptojacking made headlines back in 2017 when hackers hit a series of high profile websites (including several operated by the UK and Australian governments). Whenever somebody visited an infected site, the hackers were able to hijack the visitor’s computer and use its processing power to mine cryptocurrency. Unfortunately, while the media covered the attacks at …

An illustration of different smart devices that make up the Internet of Things.

The privacy risks of the Internet of Things

February 11th, 2020 in Privacy

The Internet of Things has come a long way since the turn of the century when it was a buzzword used by futurists and entrepreneurs. Although not yet as ubiquitous as some predicted a decade ago, Internet-connected devices have crept into many aspects of our daily lives. Now, with everything from vacuum cleaners to climate …

illustration of biometric authentication

The pros and cons of biometric authentication

January 27th, 2020 in Security

Biometric authentication is a growing part of the tech landscape — it’s in our schools, offices, airports, government buildings, and more recently, in our smartphones. Apple’s introduction of Touch ID in 2013 has paved the way for fingerprint-, face-, and iris-recognition technology to leave the almost exclusive domain of law enforcement and emerge into the …

illustration of ProtonCalendar security model

The ProtonCalendar security model

December 5th, 2019 in Security

This article documents ProtonCalendar’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 encryption protects the different layers of data. Still, it is meant to be accessible to a general audience and attempts to explain how ProtonCalendar …

illustration of EU e-evidence law

Everything wrong with the EU’s proposals for gathering electronic evidence

November 29th, 2019 in Articles & News

The European Commission recently submitted proposals for new rules governing how e-evidence is gathered by law enforcement agencies. E-evidence would include things like emails, messages, and other data related to a possible crime or investigation. It is certainly important that law enforcement can gather evidence and conduct thorough criminal investigations. However, just as there are …

illustration of ProtonMail Black Friday sale

Our Black Friday sale has started! Get up to 50% off ProtonMail and ProtonVPN

November 26th, 2019 in Articles & News

Update Nov. 30, 2019: Because ProtonMail 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, Switzerland.) This extension will give anyone who wasn’t able …

illustration of ProtonMail iOS client security

ProtonMail iOS client security

October 30th, 2019 in Security

This post documents ProtonMail’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 also ProtonMail’s iOS open source announcement. You can also read our previously published ProtonMail threat model, which …

Alternative app stores for ProtonMail’s Android app

September 5th, 2019 in Articles & News

UPDATE Sept 8th, 2019 – This blog post has been reported in some mainstream media as ProtonMail is considering to “partner with Huawei”. ProtonMail is not partnering with Huawei. We are simply considering allowing ProtonMail to be used by people with Huawei devices. That is very different. A better explanation can be found here. At …

Update on the question of voluntary real-time surveillance

May 29th, 2019 in Privacy

Updated on September 12, 2019. As the blog post referenced by this post has been removed, this post no longer serves a purpose so we have removed it. To remove any doubt, we confirm that ProtonMail has not and does not engage in voluntary real-time surveillance on behalf of law enforcement. We also confirm that …

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Proton Technologies AG

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