1/3
2 Years of Service
Here in Brazil there is a kinda big lawyer that specializes in digital cases, and he said once that Proton was one of the worse for security.
Any official document that you show them they already give you the all the data they have on the person.
I think he said it did keep logs, and he also posted some court documents to prove it. (I didn't open it, but it was official documents).
I can confirm this, I always seeing his comments on Twitter