> What would prevent a bad actor from MITMing It's not man-in-the-middle, it's man-on-the-end. If your chat app wants to spy on you, there is nothing you can d

> What would prevent a bad actor from MITMing It's not man-in-the-middle, it's man-on-the-end. If your chat app wants to spy on you, there is nothing you can do, but at least it becomes obvious and easy to analyze because it's client side code. It's not a counter argument to interoperability. You need to trust both sides, the same way web works.