@GerritStegehuis To be fair, even if someone discovered and made public a backdoor on WhatsApp (a real one, not speculation), most people would not move to Signal. Well, most of my contacts that moved from WhatsApp moved to Telegram, which isn't encrypted by default and even makes encrypted chats hard to use. Most people I saw talking about moving from WhatsApp also say they prefer Telegram because it was more features (of course, in exchange for their data). The only three contacts I have on Signal are people who care about their privacy (like a IT worker and a gov worker). Even if Signal got popular somehow, I don't see companies (which use WhatsApp a lot: I have lots of company contacts here, like healthcare, foods, banks, airlines...) using it since it's hard to set up bots for it.