Wifi security

Ok so there is this guy in my neighborhood who keeps cracking my wifi password and getting into my windows 10 laptop through the wifi

The first time He exposed himself and told me he was just messing around

After that i learned how to tell if there is someone who has access to my laptop through nmap and task manager

So this is the third time i cought him in my wifi and my laptop

So my question is how can i prevent him from entering my wifi !? Other than mac filter and strong password I use wpa2-psk my router doesn't support wpa3 .

submitted by /u/vipyaser
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from hacking: security in practice https://ift.tt/2QE7UU7