Earlier quoted context omitted.
Signal and WhatsApp aren't 100% trust worthy though. Why not pick something you can host yourself?
Right, I'm tired of this. E2EE doesn't mean anything if you have the same entity controlling the server as is controlling the endpoints. If you control both ends of an E2EE communication and they are closed then you gain nothing over normal TLS encryption, you still trust the authority. (Whatsapp is obviously closed and yes, signal can be considered effectively closed as their client is not reliably or reproducably b…
If you say something to your colleague via Whatsapp, the only scenario it can be used against you is if you commit an actual crime with reasonable evidence, they subpoena the records, and FB will be willing to go on record to the entire world as lying about Whatsapp E2EE, all in the name of putting you behind bars.
(Also, maybe we can imagine that products actually do what they do and it is not normal to fear lies and nefarious agenda behind every offering?)