Twitch automatically follows any streamers?

For some time now I have the problem that Twitch follows any people and subscribes to them with my free Prime sub. This is really getting on my nerves. Does any of you know why this could be and what I can do?

Apparently someone has access to your twitch account…

And what can I do about it?

Change your password to a secure… Possibly activate two-factor authentication…

Thank you. Did both times. Let's see if it helps

I'm assuming that.