I don't have anything other than a user relationship with this company. I'm motivated to put this here by the desire to protect others from hackers and government intrusion. Additionally, if I communicate with other memebrs I'd prefer that they have a secure means of communication. When both recipient and sender have protonmail, unbreakable end-to-end encryption exists.
You can read about it in: wikipedia https://en.wikipedia.org/wiki/ProtonMail and hear interviews from NPR and other sources.
This is from their website:
Welcome to the future of email!
You now have an inbox that is protected by strong encryption. Even we do not have the ability to read your emails. ProtonMail can send and receive emails from other email providers such as Gmail. It is even possible to end-to-end encrypt the messages you send to external recipients. If your friends also use ProtonMail, all your communications with them will be automatically end-to-end encrypted.
We would also like to welcome you to our community. For the past three years, we have been providing reliable and easy-to-use encrypted email to users in over 150 countries. Since the early days when ProtonMail was used by fewer than 1000 scientists at CERN, our community has now grown to over 1 million people.