How to protect your home Wi-Fi network from intruders?

Your router comes with a default admin password (often "admin" or "password") and a generic network name. Change both immediately. Set a strong, unique admin password and rename your network to something that does not identify you or your router model.

In your router settings, set the wireless security to WPA3 (or WPA2/WPA3 mixed mode if some devices do not support WPA3). Set a strong Wi-Fi password of at least 12 characters. Never use WEP or leave the network open.

Create a guest Wi-Fi network with its own password for visitors, smart home devices, and IoT gadgets. The guest network is isolated from your main network, so devices on it cannot see or access your computers, files, or printers.

Check for and install router firmware updates regularly. Manufacturers release updates to patch security vulnerabilities that attackers actively exploit. Many modern routers support automatic updates — enable this feature if available.

If your router is more than 4-5 years old, replacing it with a modern mesh system like Google Nest WiFi Pro, Eero Pro, or TP-Link Deco improves both security and coverage. These systems support WPA3, automatic firmware updates, and include built-in security features like threat detection.