I don’t know if there’s proof, but I have a friend that works on the team that I trust. I’ve also seen the tools for analyzing the metadata for police warrants and they only deal with metadata (because content is encrypted).
https://www.macrumors.com/how-to/end-to-end-encrypt-whatsapp...
I don’t know if there’s proof, but I have a friend that works on the team that I trust. I’ve also seen the tools for analyzing the metadata for police warrants and they only deal with metadata (because content is encrypted).