If you’re working toward CMMC compliance, you’re probably laser-focused on protecting controlled unclassified information (CUI).
That makes sense.
But for defense manufacturers, security gaps in your operational technology (OT) can leave you exposed in ways the certification process won’t catch—and that deserves attention too.
The Difference Between IT and OT Risk
CMMC is primarily applied to information technology, with an emphasis on confidentiality and integrity.
OT operates under a different set of priorities. In operational environments, safety and availability matter most.
Think about a water utility serving hundreds of thousands of people. If pump stations or treatment systems go down—or are compromised—the consequences aren’t just inconvenient, they can be catastrophic.
The same is true in manufacturing.
And there’s another concern: OT systems can serve as an entry point for malicious threat actors into IT environments. If those systems are poorly managed, they can become entry points to data and intellectual property you assumed were protected.
Why OT Stays Under the Radar
Much of today’s operational infrastructure has been in place for decades. If it’s working, there’s little incentive to change it. Operators are focused on keeping systems running, and the perceived risk of downtime from upgrades often outweighs security concerns.
The problem is that these systems often lack the monitoring, inventory, and change controls we take for granted in IT. I often hear, “These systems don’t touch the internet. They’re isolated.”
But modern OT isn’t isolated. HMIs, smart sensors, automation platforms, and remote access have blurred the lines.
Manufacturing 4.0, smart metering, and connected systems mean IT and OT are converging—while people and processes lag behind. IT teams manage corporate systems. Operators manage production. The gap between them creates blind spots, and blind spots create risk.
Unintentional Consequences of Unseen Risk
Imagine a situation with a new IT team member exploring network switches and inadvertently makes a configuration change on a core switch, resulting in a connection disruption that forces operators to go into manual mode.
No malicious intent. Major operational impact.
This is why process matters. Change management, approvals, and notifications aren’t bureaucracy; they’re safeguards that prevent well-meaning people from causing outages.
Protection That Scales With Your Budget
Effective OT security doesn’t require enterprise-scale spending.
Start with an asset inventory—you can’t protect what you don’t know you have. Assign ownership, establish accountability, and document asset lifecycle details, including intended use, maintenance cycles, and end-of-life or end-of-support status.
Clear, well-defined processes don’t just improve security; they improve efficiency, speed onboarding, and make anomalies stand out. In chaotic environments, malicious activity blends in. In structured operations with defined baselines, threats are easier to detect.
Prioritizing CMMC and OT
CMMC is a real and pressing priority, and this is not an argument to divert attention from your assessment. However, as IT and OT environments converge, the attack surface continues to expand—and organizational silos only amplify that risk.
CMMC plays a critical role in protecting controlled information, but it does not fully address operational technology risk. If OT exists within your environment, you are carrying exposure that extends beyond the scope of certification.
Start managing that risk now.
Control Without Constraints
Security controls must be balanced against operational realities. You can’t protect systems by grinding operations to a halt.
That’s why Luminary combines cybersecurity expertise with professional engineers who understand operational missions. We work collaboratively with operators to implement controls that protect systems without interfering with the job at hand.
In operational environments, long and complex passwords are often impractical, especially when operators are working in the field or under time pressure. In one such environment, we replaced passwords with badge-based multi-factor authentication.
The result was faster operator access, improved accountability through individual credentialing, and the elimination of shared credentials.