Router
A router is the box that connects your home devices to the internet and to each other. It is the front door of your home network.
Every device in your home talks to the internet through the router, so a weak router puts everything behind it at risk.
The main risks are default admin passwords, old firmware with known holes, and features like remote admin or WPS left switched on.
Change the admin password, turn on automatic updates, use WPA3 or WPA2 encryption, and replace routers that no longer get updates.
Learn it in a 7-minute lessonHome network & IoTyour router is the front door