09/04/2026
CMMC's least functionality principle focuses on limiting unnecessary functions, ports, protocols, and services within systems. The goal is to reduce opportunities for vulnerabilities and keep systems focused on what they actually need to do.
It's a simple concept with an important security benefit: if something isn't necessary for the business or system to operate, there may be a good reason to disable or restrict it.
Understanding requirements like this makes CMMC easier to approach as a security strategy rather than just another compliance checklist.
Learn more about CMMC 3.4.6 in the full video.
https://youtu.be/Aoq32SgWyHI