Most routers have a "Connected Devices" or "DHCP Client List" section. If you see a device you don't recognize (like "Linda’s iPhone"), that’s your intruder.
They might be able to see the domain names you visit (e.g., google.com ) if they are technically savvy enough to "sniff" traffic, but this requires specialized tools. Your Bitch Neighbour
If someone is simply connected to your Wi-Fi as a guest/user, their visibility is actually quite limited compared to the . Most routers have a "Connected Devices" or "DHCP
If you’re referencing the specific tech scenario where a "bitch neighbor" has gained access to your Wi-Fi password, the primary concern is usually —specifically what they can see and how to kick them off. What can they actually see? If someone is simply connected to your Wi-Fi
This is the most effective "reset." Log into your router’s admin panel and update the WPA2/WPA3 password. This will immediately disconnect every device, including the neighbor.