The last couple days I was talking to someone online, and this person said that my IP address was this and that, out of nowhere... Which was wrong, probably because I was connected to a VPN (not the point) but still, I'm worried now, how can you even check someone's IP address? Is it dangerous? Why would someone do it? To get my location or any other reason?
Actually it is not dangerous on some aspects, your IP address is your basic identity to your system when connected to internet and if someone knows it then you can be exploited on some basis for some instant of time. But it is difficult to establish a persistant connection because every time your pc restarts, it gets its new ip address. So no need to be afraid.