Automated network port change detection. Scan17 provides a solution to the question:
So your CTO decides to outsource firewall management - and the vendor carelessly leaves a network port open, exposing your production database. How does your team find out before an attacker?
Think of it as nmap port scan diff-ing. If a network port goes from closed to open you get an email or webhook alert. There is a REST API for automated workflows and privately hosted engines will be supported for some plans. There is a wait-list form on the website if you want to stay in the loop.
If you work in infosec / cyber security and are interested in being an early product designer / beta tester, let's chat! See my profile for how to get in touch.