How to prevent Wi-Fi theft
There's one primary way to keep unwanted Wi-Fi lurkers out: Choose a strong password. Pick a password that only your household will know, and be very careful about who, if anyone, you share it with. "Be especially careful about sharing your password with people who live close enough to use your Wi-Fi from their house or apartment!" Hamerstone advises. It's not foolproof, as a talented hacker could crack your password, but "this simple step will prevent most instances of opportunistic Wi-Fi theft," Hamerstone sums up. He also recommends setting up a separate "Guest" network and/or a 5G network, making sure they've all got strong passwords. Finally, you should consider using a VPN, which, in addition to keeping you safe on public Wi-Fi, can also protect your information on your own network.
7 Red Flags Someone Is Stealing Your Wi-Fi, Source:https://www.rd.com/list/red-flags-someone-is-stealing-your-wifi/
