What can a person connected to my Wi-Fi find out?

Question

Information Security

The situation is this, a friend asked me to distribute wi-fi via modem mode, I distributed it, set the default password, after a few minutes I look - connections 2, apparently, someone else connected to me, so that's what the person who connected to my wi -fi, can learn/intercept
Phone - iphone 6, ios 12

Answer 1

What he can find out (SSID, router model, something else) cannot be compared with the harm that a connected person can cause. After all, your IP will be in all the logs.
Someone connected, for example, went to the pipe and wrote in the comments about Morgenstern that he approves of his position about "sucking is a talent" - and disconnected, and all the consequences of this will go to you :)
(and this is still the most harmless thing that came to me in the head, you can substitute a person much more seriously)