Here are some simple steps to making your router more secure.
- If in a business setting using a firewall between the interface and the management network eliminates the danger of having to access the router from the internet.
- Second make sure you are not using the routers default username and password. It is a simple change that can vastly increase the difficulty of accessing your networks. Here is a guide of how to do it with netgear routers. https://kb.netgear.com/23439/How-do-I-change-my-NETGEAR-router-WiFi-password-or-network-name-SSID
- Lastly make sure you restrict what IP addresses can manage your router. This insures that only known IP adresses that your router is already familiar with can have future access to managing its settings.