Antivirus is a seatbelt for a certain kind of wreck. It does not steer the car, lock the doors, or decide who gets in. A green check mark will not catch a friend request, a reused password, a factory router login, or a voice in a game chat. Use what already shipped on the phone. Spend the rest of the time on settings and the conversation.

You know your child better than anyone. That is not the same as knowing the room they just walked into. Trouble usually starts as a game chat that sounds like a friend. Trust is the relationship. Settings are the locks. You need both. Character is not a firewall.

The sticker password is for Wi-Fi, not the router’s settings page. Those are two different locks. Most houses never change the factory setup. This is the short pass: admin password, guest network, WPS off, firmware update, remote access off. Do it on a laptop, not the phone app. After this, the router stops being the weakest door.