They've already been using Signal - which is "commercial" app, meaning it's not meant to be used like that - for top-secret (or at least highly sensitive) military communications during the military strikes on Yemen. If that was fake, I apologise, I was deceived. I wouldn't be surprised if things turned out that way again, to be honest. That's something to be expected, actually (IMO).
Could you please stop posting unsubstantive comments and flamebait? You've unfortunately been doing it repeatedly. It's not what this site is for, and destroys what it is for.