itch.io

I have an issue and I can't find any solutions online and it's not one of the youtube hacks, which is what keeps showing up, can anyone help me pls? So this want directly me and I don't have the full information but, my cousin got on and one of the servers and was playing fine and then someone came on and said they knew my name and address (to my cousin not me) and then proceeded to put my full name and current address in the chat. I don't know how they found this out but she changed her passwords on her phone and emails and deleted the game. If anyone else has had something like this happen to them can you let me know how you fixed it. If I find any new info tommorow I with leave a comment on this as well explaining.