Here’s a snippet of 1 page of 124 “alerts” from IDS/IPS running on a pFSense Firewall.
As you can see, the illusion you are safe hiding behind a Modem and Brand Name Router is blown away. Below are active Attacks from the internet, BEHIND a router and modem, otherwise known as your “safe” network. Note PortScans, and other malicious attacks creeping right into your home without you knowing!