As to whether Judge Daniela Barbosa acted wrongly, the Supreme Court has just rejected the lower court's decision, as they have every time thus far for WhatsApp bans.

But I hope that at least part of the conversation can be brought back to the issue of encryption in Brazil. This case is simultaneously also about whether encrypted communications are okay in Brazil, because the Brazilian government wants a company abroad to put backdoor features into their software. That means that no Brazilian may have secure communications without backdoors.

I cannot imagine that Brazilians trust their government anymore than Americans. I propose that any government will always be able to lift any privilege (aka right) in the legitimate or illegitimate pursuit of its interests, but that the citizen should not voluntarily forfeit their ability to secure themselves, especially with something as non-violent and social as communication security.

Also, even when a government is legitimately pursuing its interests in determining the criminality of a citizen, if Brazilian prosecution is anywhere near as hostile and adversarial as the US, then the Brazilian individual ought not voluntarily yield themselves to government investigation, even if they are innocent or righteous.