The IT security experts at ProtonMail share their tips for securing your business's devices and network.

Out now! Get the ProtonMail IT security ebook for small businesses

November 7th, 2019 in Articles & News

IT security is crucial to success in today’s economy. A data breach can cost you time, money, and your customers’ trust. Yet, due to a lack of funding, time, and expertise, most small- and medium-sized businesses (SMEs) are unprepared to deal with basic cyber threats. As a result, most victims of data breaches are small …

illustration of ProtonMail iOS open source

ProtonMail iOS app goes open source!

October 30th, 2019 in Articles & News

We’re happy to announce that the ProtonMail iOS app is now fully open source.  We believe in transparency, the power of community, and building a more private and secure future for all. That’s why our web app has been open source since 2015, and it’s why we have contributed to the open source community by …

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 our 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 …

illustration of protonmail ios security recommendation

Security recommendation: enable FaceID or PIN protection on the ProtonMail iOS app

October 30th, 2019 in Security

One of the unique innovations of the ProtonMail iOS app is the AppKey Protection System. This is an extra layer of encryption on top of Apple’s built-in local encryption that protects sensitive Proton data stored on your device. When you have AppKey Protection System enabled, your ProtonMail data is more secure against malware from hackers …

illustration of ProtonMail Version 4.0 beta

Say hello to the future of ProtonMail! Introducing Version 4.0 beta

October 24th, 2019 in Articles & News

Today we’re unveiling our biggest redesign ever. Not only does ProtonMail Version 4.0 look more modern on the surface, it’s part of our ongoing transition to a newer software framework that lays the foundation for future features, new products, and better customization.  You can start using the ProtonMail Version 4.0 beta right now. It’s open …

illustration of ProtonMail free speech

Freedom is a human right, and we are committed to defending it even when others won’t

October 21st, 2019 in Privacy

Since we launched in 2014, ProtonMail has been the preferred email service provider for activists around the world. Protecting freedom of speech and democracy is, after all, one of the main reasons we created ProtonMail in the first place. Normally, this would not be of particular interest to anyone: we have always believed that all …

illustration of two-factor authentication

If you aren’t using two-factor authentication, your accounts are vulnerable

October 10th, 2019 in Security

Earlier this year, security researchers discovered a fire sale taking place on the dark web: 2.2 billion usernames and passwords that had been stolen in data breaches and compiled into a multi-volume database dubbed as Collection #1-5. With so many passwords leaked, there is a decent chance that yours was among them. (You can check …

Illustration of why ProtonMail is trustworthy

Why should you trust ProtonMail?

September 24th, 2019 in Privacy

This is a challenging question to answer, but it is also a fair one, so we wanted to share our views about this in a blog post. In general, we strive to make our service require as little trust as possible. We encrypt data in a way that does not allow us to decrypt it, …

We oppose facial recognition surveillance

Why we oppose unregulated facial recognition surveillance

September 12th, 2019 in Articles & News

We created ProtonMail in 2014 because we were concerned about mass surveillance. At the time, governments were spying on our emails, text messages, and phone calls. Now there’s a new surveillance threat, but this time the information at risk isn’t our communications — it’s our bodies. Today, we’re joining other privacy advocates and businesses to …

Illustration of multi-account support in ProtonMail Android.

Introducing multi-account support for ProtonMail Android

September 10th, 2019 in Releases

Version 1.12 of the ProtonMail Android app makes it easy for anyone to manage multiple ProtonMail accounts right on their phone. This feature allows you to be logged into multiple ProtonMail accounts at the same time, and easily switch between their inboxes. Multi-account support We have received numerous requests from small- and medium-sized business owners, …

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 …

Clarifying ProtonMail and Huawei

September 8th, 2019 in Articles & News

As there has been a lot of inaccurate information circulating online about ProtonMail and Huawei, the purpose of this blog post is to clarify the facts and provide information to the Proton community. Background On September 5th, 2019, we announced that we would be bringing ProtonMail to the F-droid alternative app store as part of …

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