The inconvenient truth is that there is no such thing as a backdoor that only lets the good guys in. The EU's resolution on encryption, released yesterday, could result in a net decrease of everyone's privacy and security: https://protonmail.com/blog/eu-attack-on-encryption/
@protonmail bad news it is !
@protonmail
The day protonmail anonces it has a backdoor, I will stop paying for their service.
@Divert You don't have to worry about that. As you know, ProtonMail doesn't have any backdoors, and we would never cooperate with requests to install one. Our software also continues to be open source, meaning anyone can check our code and confirm for themselves that we are protecting user data in the way we claim.
Server run by the main developers of the project 
It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!
@protonmail So much for the EU having the better view on Internet laws