You’re full of shit. There’s nothing theoretical about that vulnerability (almost certainly a deliberately planted backdoor), it allows the Telegram servers to

You’re full of shit. There’s nothing theoretical about that vulnerability (almost certainly a deliberately planted backdoor), it allows the Telegram servers to selectively MITM private chats. > there has been no successful implementation of them. What does this even mean? Only Telegram can perform this active attack, obviously you haven’t seen it implemented.