Antibotnet -- software products and hardware gizmos to detect when IoT gizmos get pwned, recruited into botnets, and then the botnets are activated to attack KrebsOnSecurity or somebody.

This stuff should be priced for home and small office use.

"BEEEP" Why is your laser printer's ethernet port issuing tons of SYN requests? Unplug that printer! Factory reset it!

Grow it into carrier-grade implementations.