Privacy
@kabo
I'm not Tutanota, but I'll try answering anyway. The right to privacy implies the right to use strong encryption. If you shout on the street, you probably did so voluntarily with the intent to be heard by those nearby, but that doesn't mean they should have free reign to secretly record you and share it with others. Privacy and free speech are alike in that they are safeguards against tyranny and coercion.
To the extent that the distinction between "positive" and "negative" rights is meaningful here, I would say that privacy is perhaps more often a negative right than a positive right.
It's possible that our apparent disagreement comes from us using the words "privacy" and/or "rights" differently from each other. I agree that tools like encryption are important. I also agree that there is some measure of personal responsibility in safeguarding privacy, but it's important to remember that failing to take the absolute most extreme measures ought not to be a blank check for abuse.