Everyone has their own threat models, so I don't want to make broad, sweeping recommendations here, but if you use Protonmail to talk to sources, you should read this story.
The way Protonmail handled this whole thing is quite bad. No transparency, dismissing the story as being "blown out of proportion."


The Intercept
Proton Mail Suspended Journalist Accounts at Request of Cybersecurity Agency
The journalists were reporting on suspected North Korean hackers. Proton only reinstated their accounts after a public outcry.








