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Proton Mail Discloses User Data Leading to Arrest in Spain
(restoreprivacy.com)
This is a most excellent place for technology news and articles.
Don’t forget that most of your email arrives at their servers unencrypted, supposedly they immediately encrypt it, but you have to take their word on that. And there’s always the possibility that they are forced or just decide to make a copy of emails as they’re encrypting for your inbox.