What if someone know my ip?

[Andro]

Lol, no hes just pretending he knows how to hack so he can scare you. You can't do much knowing someone else's IP except know their general location and how far away they are from you. I can easily look up an IP by certain apps or even entering a url into cmd command prompt. They can do nothing with your IP. Tell them if they want to hack you, they would have to use hacking software as an IP is only the address networks use to identify you, and holds no security information whatsoever.