Is it possible to hack an already existing bot into a discord server, whatsapp, etc.?

Question

Information Security

Hello. Today the question has matured: is it possible to hack a bot: discord, whatsapp, etc., namely, to connect to an already existing bot, change the code, control it through a script, etc. And how to protect yourself from this? And if this is not possible, then why?

Answer 1

The bot usually cannot be connected to because it is not a server and does not accept incoming communication - the bot acts as a client that connects to the discord server.
You can try to hack and connect to the machine on which the bot is running.